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1312110232312 = 231165998323017
BaseRepresentation
bin10011000101111111110…
…111010100001011111000
311122102210012212222212211
4103011333313110023320
5132444200204413222
62442435231544504
7163540212645205
oct23057767241370
94572705788784
101312110232312
11466510023a50
1219236708b134
1396968045c89
1447713a9ccac
15241e71bc277
hex1317fdd42f8

1312110232312 has 64 divisors (see below), whose sum is σ = 2690785785600. Its totient is φ = 594877059840.

The previous prime is 1312110232291. The next prime is 1312110232327. The reversal of 1312110232312 is 2132320112131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56994628 + ... + 57017644.

It is an arithmetic number, because the mean of its divisors is an integer number (42043527900).

Almost surely, 21312110232312 is an apocalyptic number.

It is an amenable number.

1312110232312 is an abundant number, since it is smaller than the sum of its proper divisors (1378675553288).

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

1312110232312 is a wasteful number, since it uses less digits than its factorization.

1312110232312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24676 (or 24672 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1312110232312 its reverse (2132320112131), we get a palindrome (3444430344443).

The spelling of 1312110232312 in words is "one trillion, three hundred twelve billion, one hundred ten million, two hundred thirty-two thousand, three hundred twelve".

Divisors: 1 2 4 8 11 22 44 88 659 983 1318 1966 2636 3932 5272 7249 7864 10813 14498 21626 23017 28996 43252 46034 57992 86504 92068 184136 253187 506374 647797 1012748 1295594 2025496 2591188 5182376 7125767 14251534 15168203 22625711 28503068 30336406 45251422 57006136 60672812 90502844 121345624 166850233 181005688 248882821 333700466 497765642 667400932 995531284 1334801864 1991062568 14910343549 29820687098 59641374196 119282748392 164013779039 328027558078 656055116156 1312110232312