13212003431 has 24 divisors (see below), whose sum is σ = 14675271072. Its totient is φ = 11885068800.

The previous prime is 13212003383. The next prime is 13212003439. The reversal of 13212003431 is 13430021231.

It is not a de Polignac number, because 13212003431 - 2¹⁸ = 13211741287 is a prime.

It is a super-2 number, since 2×13212003431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212003439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4868531 + ... + 4871243.

It is an arithmetic number, because the mean of its divisors is an integer number (611469628).

Almost surely, 2^13212003431 is an apocalyptic number.

13212003431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13212003431 is a deficient number, since it is larger than the sum of its proper divisors (1463267641).

13212003431 is a wasteful number, since it uses less digits than its factorization.

13212003431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143 (or 3132 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13212003431 its reverse (13430021231), we get a palindrome (26642024662).

The spelling of 13212003431 in words is "thirteen billion, two hundred twelve million, three thousand, four hundred thirty-one".