31232266223213 has 4 divisors (see below), whose sum is σ = 34071563152608. Its totient is φ = 28392969293820.

The previous prime is 31232266223201. The next prime is 31232266223233.

31232266223213 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31232266223213 - 2⁸ = 31232266222957 is a prime.

It is a super-2 number, since 2×31232266223213² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31232266223233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1419648464681 + ... + 1419648464702.

It is an arithmetic number, because the mean of its divisors is an integer number (8517890788152).

Almost surely, 2^{31232266223213} is an apocalyptic number.

It is an amenable number.

31232266223213 is a deficient number, since it is larger than the sum of its proper divisors (2839296929395).

31232266223213 is a wasteful number, since it uses less digits than its factorization.

31232266223213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839296929394.

The product of its digits is 186624, while the sum is 38.

It can be divided in two parts, 3123226 and 6223213, that added together give a palindrome (9346439).

The spelling of 31232266223213 in words is "thirty-one trillion, two hundred thirty-two billion, two hundred sixty-six million, two hundred twenty-three thousand, two hundred thirteen".