31232223213 has 8 divisors (see below), whose sum is σ = 41643852000. Its totient is φ = 20821038288.

The previous prime is 31232223193. The next prime is 31232223223.

31232223213 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 31232223213 - 2⁹ = 31232222701 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31232223223) 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, 124758 + ... + 279336.

It is an arithmetic number, because the mean of its divisors is an integer number (5205481500).

Almost surely, 2^31232223213 is an apocalyptic number.

It is an amenable number.

31232223213 is a deficient number, since it is larger than the sum of its proper divisors (10411628787).

31232223213 is a wasteful number, since it uses less digits than its factorization.

31232223213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221931.

The product of its digits is 2592, while the sum is 24.

The spelling of 31232223213 in words is "thirty-one billion, two hundred thirty-two million, two hundred twenty-three thousand, two hundred thirteen".