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1312232030120 = 235112982345523
BaseRepresentation
bin10011000110000111000…
…111111011111110101000
311122110002201001222001202
4103012013013323332220
5132444422344430440
62442455302303332
7163543222134644
oct23060707737650
94573081058052
101312232030120
114665728534a0
1219239ba27b48
139698734c29b
1447725d25c24
1524202c2a615
hex131871fbfa8

1312232030120 has 32 divisors (see below), whose sum is σ = 3220933165920. Its totient is φ = 477175283520.

The previous prime is 1312232030093. The next prime is 1312232030171. The reversal of 1312232030120 is 210302322131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1312232030092 and 1312232030101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1491172322 + ... + 1491173201.

It is an arithmetic number, because the mean of its divisors is an integer number (100654161435).

Almost surely, 21312232030120 is an apocalyptic number.

1312232030120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312232030120 is an abundant number, since it is smaller than the sum of its proper divisors (1908701135800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312232030120 is a wasteful number, since it uses less digits than its factorization.

1312232030120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982345545 (or 2982345541 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1312232030120 its reverse (210302322131), we get a palindrome (1522534352251).

The spelling of 1312232030120 in words is "one trillion, three hundred twelve billion, two hundred thirty-two million, thirty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 2982345523 5964691046 11929382092 14911727615 23858764184 29823455230 32805800753 59646910460 65611601506 119293820920 131223203012 164029003765 262446406024 328058007530 656116015060 1312232030120