32213031231 has 16 divisors (see below), whose sum is σ = 43507251200. Its totient is φ = 21197243808.

The previous prime is 32213031217. The next prime is 32213031233. The reversal of 32213031231 is 13213031223.

It is not a de Polignac number, because 32213031231 - 2¹³ = 32213023039 is a prime.

It is a super-2 number, since 2×32213031231² (a number of 22 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 = 32213031198 and 32213031207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32213031233) 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, 865065 + ... + 901533.

It is an arithmetic number, because the mean of its divisors is an integer number (2719203200).

Almost surely, 2^32213031231 is an apocalyptic number.

32213031231 is a deficient number, since it is larger than the sum of its proper divisors (11294219969).

32213031231 is a wasteful number, since it uses less digits than its factorization.

32213031231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40278.

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

Adding to 32213031231 its reverse (13213031223), we get a palindrome (45426062454).

The spelling of 32213031231 in words is "thirty-two billion, two hundred thirteen million, thirty-one thousand, two hundred thirty-one".