32131223010021 has 16 divisors (see below), whose sum is σ = 43384308940800. Its totient is φ = 21149480949168.

The previous prime is 32131223009933. The next prime is 32131223010067. The reversal of 32131223010021 is 12001032213123.

It is not a de Polignac number, because 32131223010021 - 2¹¹ = 32131223007973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32131223010021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32131223010521) 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, 29885260 + ... + 30941738.

It is an arithmetic number, because the mean of its divisors is an integer number (2711519308800).

Almost surely, 2^{32131223010021} is an apocalyptic number.

It is an amenable number.

32131223010021 is a deficient number, since it is larger than the sum of its proper divisors (11253085930779).

32131223010021 is a wasteful number, since it uses less digits than its factorization.

32131223010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184888.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 32131223010021 its reverse (12001032213123), we get a palindrome (44132255223144).

The spelling of 32131223010021 in words is "thirty-two trillion, one hundred thirty-one billion, two hundred twenty-three million, ten thousand, twenty-one".