32011321231 has 4 divisors (see below), whose sum is σ = 32095784200. Its totient is φ = 31926858264.

The previous prime is 32011321211. The next prime is 32011321259. The reversal of 32011321231 is 13212311023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13212311023 = 17909 ⋅737747.

It is a cyclic number.

It is not a de Polignac number, because 32011321231 - 2⁷ = 32011321103 is a prime.

It is a super-2 number, since 2×32011321231² (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 = 32011321199 and 32011321208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32011321211) 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, 42230916 + ... + 42231673.

It is an arithmetic number, because the mean of its divisors is an integer number (8023946050).

Almost surely, 2^32011321231 is an apocalyptic number.

32011321231 is a deficient number, since it is larger than the sum of its proper divisors (84462969).

32011321231 is an equidigital number, since it uses as much as digits as its factorization.

32011321231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84462968.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 32011321231 its reverse (13212311023), we get a palindrome (45223632254).

The spelling of 32011321231 in words is "thirty-two billion, eleven million, three hundred twenty-one thousand, two hundred thirty-one".