13031213231031 has 16 divisors (see below), whose sum is σ = 18289919706240. Its totient is φ = 8230016003040.

The previous prime is 13031213231017. The next prime is 13031213231063. The reversal of 13031213231031 is 13013231213031.

It is not a de Polignac number, because 13031213231031 - 2¹⁴ = 13031213214647 is a prime.

It is a super-2 number, since 2×13031213231031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13031213230992 and 13031213231010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031213231131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 984225 + ... + 5199146.

It is an arithmetic number, because the mean of its divisors is an integer number (1143119981640).

Almost surely, 2^{13031213231031} is an apocalyptic number.

13031213231031 is a deficient number, since it is larger than the sum of its proper divisors (5258706475209).

13031213231031 is a wasteful number, since it uses less digits than its factorization.

13031213231031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6220366.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 13031213231031 its reverse (13013231213031), we get a palindrome (26044444444062).

The spelling of 13031213231031 in words is "thirteen trillion, thirty-one billion, two hundred thirteen million, two hundred thirty-one thousand, thirty-one".