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13012400421031 = 119191287209459
BaseRepresentation
bin1011110101011010111110…
…0000010011100010100111
31201001222021120002012000111
42331112233200103202213
53201143344001433111
643401451512353451
72512054261422364
oct275265740234247
951058246065014
1013012400421031
114167589894640
121561a826a5887
137350aaa7b05b
1432db36cb746b
15178738150a21
hexbd5af8138a7

13012400421031 has 8 divisors (see below), whose sum is σ = 14210792438400. Its totient is φ = 11816582824440.

The previous prime is 13012400421017. The next prime is 13012400421091.

13012400421031 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13012400421031 - 233 = 13003810486439 is a prime.

It is a super-2 number, since 2×130124004210312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13012400420993 and 13012400421011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012400421091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 643594621 + ... + 643614838.

It is an arithmetic number, because the mean of its divisors is an integer number (1776349054800).

Almost surely, 213012400421031 is an apocalyptic number.

13012400421031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13012400421031 is a deficient number, since it is larger than the sum of its proper divisors (1198392017369).

13012400421031 is a wasteful number, since it uses less digits than its factorization.

13012400421031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287210389.

The product of its (nonzero) digits is 576, while the sum is 22.

It can be divided in two parts, 13012400 and 421031, that added together give a palindrome (13433431).

The spelling of 13012400421031 in words is "thirteen trillion, twelve billion, four hundred million, four hundred twenty-one thousand, thirty-one".

Divisors: 1 11 919 10109 1287209459 14159304049 1182945492821 13012400421031