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1312330101212 = 221367376673393
BaseRepresentation
bin10011000110001100111…
…110000011000111011100
311122110100112121111022102
4103012030332003013130
5133000123001214322
62442513124304232
7163545522544334
oct23061476030734
94573315544272
101312330101212
11466613147789
12192408842078
13969a1768b10
1447734d740c4
152420b64d792
hex1318cf831dc

1312330101212 has 24 divisors (see below), whose sum is σ = 2510151497616. Its totient is φ = 596650652928.

The previous prime is 1312330101163. The next prime is 1312330101227. The reversal of 1312330101212 is 2121010332131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188333213 + ... + 188340180.

It is an arithmetic number, because the mean of its divisors is an integer number (104589645734).

Almost surely, 21312330101212 is an apocalyptic number.

It is an amenable number.

1312330101212 is a deficient number, since it is larger than the sum of its proper divisors (1197821396404).

1312330101212 is a wasteful number, since it uses less digits than its factorization.

1312330101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376673477 (or 376673475 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1312330101212 its reverse (2121010332131), we get a palindrome (3433340433343).

The spelling of 1312330101212 in words is "one trillion, three hundred twelve billion, three hundred thirty million, one hundred one thousand, two hundred twelve".

Divisors: 1 2 4 13 26 52 67 134 268 871 1742 3484 376673393 753346786 1506693572 4896754109 9793508218 19587016436 25237117331 50474234662 100948469324 328082525303 656165050606 1312330101212