13212031431 has 8 divisors (see below), whose sum is σ = 17673424384. Its totient is φ = 8779329720.

The previous prime is 13212031411. The next prime is 13212031451. The reversal of 13212031431 is 13413021231.

It is an interprime number because it is at equal distance from previous prime (13212031411) and next prime (13212031451).

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

It is not a de Polignac number, because 13212031431 - 2²⁵ = 13178476999 is a prime.

It is a super-2 number, since 2×13212031431² (a number of 21 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 = 13212031398 and 13212031407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212031411) 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, 7171735 + ... + 7173576.

It is an arithmetic number, because the mean of its divisors is an integer number (2209178048).

Almost surely, 2^13212031431 is an apocalyptic number.

13212031431 is a deficient number, since it is larger than the sum of its proper divisors (4461392953).

13212031431 is a wasteful number, since it uses less digits than its factorization.

13212031431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14345621.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13212031431 its reverse (13413021231), we get a palindrome (26625052662).

The spelling of 13212031431 in words is "thirteen billion, two hundred twelve million, thirty-one thousand, four hundred thirty-one".