213231032031 has 8 divisors (see below), whose sum is σ = 284312195200. Its totient is φ = 142151945112.

The previous prime is 213231032023. The next prime is 213231032041. The reversal of 213231032031 is 130230132312.

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

It is not a de Polignac number, because 213231032031 - 2³ = 213231032023 is a prime.

It is a super-2 number, since 2×213231032031² (a number of 23 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 = 213231031989 and 213231032007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213231032041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261115 + ... + 703308.

It is an arithmetic number, because the mean of its divisors is an integer number (35539024400).

Almost surely, 2^213231032031 is an apocalyptic number.

213231032031 is a deficient number, since it is larger than the sum of its proper divisors (71081163169).

213231032031 is an equidigital number, since it uses as much as digits as its factorization.

213231032031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038125.

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

Adding to 213231032031 its reverse (130230132312), we get a palindrome (343461164343).

The spelling of 213231032031 in words is "two hundred thirteen billion, two hundred thirty-one million, thirty-two thousand, thirty-one".