32131120004 has 12 divisors (see below), whose sum is σ = 56514890124. Its totient is φ = 15984008544.

The previous prime is 32131119983. The next prime is 32131120009. The reversal of 32131120004 is 40002113123.

It can be written as a sum of positive squares in 2 ways, for example, as 16192562500 + 15938557504 = 127250^2 + 126248^2 .

It is a super-2 number, since 2×32131120004² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32131120009) 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, 20386979 + ... + 20388554.

It is an arithmetic number, because the mean of its divisors is an integer number (4709574177).

Almost surely, 2^32131120004 is an apocalyptic number.

It is an amenable number.

32131120004 is a deficient number, since it is larger than the sum of its proper divisors (24383770120).

32131120004 is a wasteful number, since it uses less digits than its factorization.

32131120004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40775734 (or 40775732 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 32131120004 its reverse (40002113123), we get a palindrome (72133233127).

The spelling of 32131120004 in words is "thirty-two billion, one hundred thirty-one million, one hundred twenty thousand, four".