13213322031 has 16 divisors (see below), whose sum is σ = 21683400704. Its totient is φ = 6969664224.

The previous prime is 13213322021. The next prime is 13213322041. The reversal of 13213322031 is 13022331231.

It is an interprime number because it is at equal distance from previous prime (13213322021) and next prime (13213322041).

It is not a de Polignac number, because 13213322031 - 2²⁷ = 13079104303 is a prime.

It is a super-2 number, since 2×13213322031² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 13213321989 and 13213322007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213322011) 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, 24199951 + ... + 24200496.

It is an arithmetic number, because the mean of its divisors is an integer number (1355212544).

Almost surely, 2^13213322031 is an apocalyptic number.

13213322031 is a deficient number, since it is larger than the sum of its proper divisors (8470078673).

13213322031 is a wasteful number, since it uses less digits than its factorization.

13213322031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48400470.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13213322031 its reverse (13022331231), we get a palindrome (26235653262).

The spelling of 13213322031 in words is "thirteen billion, two hundred thirteen million, three hundred twenty-two thousand, thirty-one".