32112040021 has 4 divisors (see below), whose sum is σ = 32252267500. Its totient is φ = 31971812544.

The previous prime is 32112039989. The next prime is 32112040033. The reversal of 32112040021 is 12004021123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15013600900 + 17098439121 = 122530^2 + 130761^2 .

It is a cyclic number.

It is not a de Polignac number, because 32112040021 - 2⁵ = 32112039989 is a prime.

It is a super-2 number, since 2×32112040021² (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 = 32112039977 and 32112040004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32112440021) 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, 70113396 + ... + 70113853.

It is an arithmetic number, because the mean of its divisors is an integer number (8063066875).

Almost surely, 2^32112040021 is an apocalyptic number.

It is an amenable number.

32112040021 is a deficient number, since it is larger than the sum of its proper divisors (140227479).

32112040021 is a wasteful number, since it uses less digits than its factorization.

32112040021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140227478.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 32112040021 its reverse (12004021123), we get a palindrome (44116061144).

The spelling of 32112040021 in words is "thirty-two billion, one hundred twelve million, forty thousand, twenty-one".