32000031021 has 32 divisors (see below), whose sum is σ = 51345280000. Its totient is φ = 17317618560.

The previous prime is 32000030941. The next prime is 32000031029. The reversal of 32000031021 is 12013000023.

It is a happy number.

It is not a de Polignac number, because 32000031021 - 2²³ = 31991642413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32000030988 and 32000031006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32000031029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1384641 + ... + 1407561.

It is an arithmetic number, because the mean of its divisors is an integer number (1604540000).

Almost surely, 2^32000031021 is an apocalyptic number.

It is an amenable number.

32000031021 is a deficient number, since it is larger than the sum of its proper divisors (19345248979).

32000031021 is a wasteful number, since it uses less digits than its factorization.

32000031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26449.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 32000031021 its reverse (12013000023), we get a palindrome (44013031044).

The spelling of 32000031021 in words is "thirty-two billion, thirty-one thousand, twenty-one".