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13113031113012 = 2231139670376927
BaseRepresentation
bin1011111011010001110110…
…0011111011100100110100
31201102121000200111000000110
42332310131203323210310
53204320441431104022
643520013205343020
72522246064250125
oct276643543734464
951377020430013
1013113031113012
1141a6229230986
121579487707a70
137417271412cc
143349619d004c
1517b17791c00c
hexbed1d8fb934

13113031113012 has 24 divisors (see below), whose sum is σ = 30867843154176. Its totient is φ = 4332328862848.

The previous prime is 13113031112957. The next prime is 13113031113031. The reversal of 13113031113012 is 21031113031131.

It is a self number, because there is not a number n which added to its sum of digits gives 13113031113012.

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, 4835187108 + ... + 4835189819.

It is an arithmetic number, because the mean of its divisors is an integer number (1286160131424).

Almost surely, 213113031113012 is an apocalyptic number.

13113031113012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13113031113012 is an abundant number, since it is smaller than the sum of its proper divisors (17754812041164).

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

13113031113012 is a wasteful number, since it uses less digits than its factorization.

13113031113012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9670377047 (or 9670377045 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 13113031113012 its reverse (21031113031131), we get a palindrome (34144144144143).

The spelling of 13113031113012 in words is "thirteen trillion, one hundred thirteen billion, thirty-one million, one hundred thirteen thousand, twelve".

Divisors: 1 2 3 4 6 12 113 226 339 452 678 1356 9670376927 19340753854 29011130781 38681507708 58022261562 116044523124 1092752592751 2185505185502 3278257778253 4371010371004 6556515556506 13113031113012