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1213111301032 = 231767713175681
BaseRepresentation
bin10001101001110011000…
…100010111001110101000
311021222020210221012202101
4101221303010113032220
5124333422443113112
62325143505143144
7153434012631331
oct21516304271650
94258223835671
101213111301032
11428528781674
1217713862aab4
138a51ba58cb7
1442a01987288
1521850cc5757
hex11a731173a8

1213111301032 has 32 divisors (see below), whose sum is σ = 2411940346920. Its totient is φ = 570032619520.

The previous prime is 1213111301027. The next prime is 1213111301063. The reversal of 1213111301032 is 2301031113121.

It can be written as a sum of positive squares in 4 ways, for example, as 1075978842436 + 137132458596 = 1037294^2 + 370314^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6495769 + ... + 6679912.

Almost surely, 21213111301032 is an apocalyptic number.

It is an amenable number.

1213111301032 is a deficient number, since it is larger than the sum of its proper divisors (1198829045888).

1213111301032 is a wasteful number, since it uses less digits than its factorization.

1213111301032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13176381 (or 13176377 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1213111301032 its reverse (2301031113121), we get a palindrome (3514142414153).

The spelling of 1213111301032 in words is "one trillion, two hundred thirteen billion, one hundred eleven million, three hundred one thousand, thirty-two".

Divisors: 1 2 4 8 17 34 68 136 677 1354 2708 5416 11509 23018 46036 92072 13175681 26351362 52702724 105405448 223986577 447973154 895946308 1791892616 8919936037 17839872074 35679744148 71359488296 151638912629 303277825258 606555650516 1213111301032