32131001020 has 24 divisors (see below), whose sum is σ = 67772358864. Its totient is φ = 12795780096.

The previous prime is 32131001017. The next prime is 32131001029. The reversal of 32131001020 is 2010013123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32131001029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3534117 + ... + 3543196.

It is an arithmetic number, because the mean of its divisors is an integer number (2823848286).

Almost surely, 2^32131001020 is an apocalyptic number.

It is an amenable number.

32131001020 is an abundant number, since it is smaller than the sum of its proper divisors (35641357844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32131001020 is a wasteful number, since it uses less digits than its factorization.

32131001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7077549 (or 7077547 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 32131001020 its reverse (2010013123), we get a palindrome (34141014143).

The spelling of 32131001020 in words is "thirty-two billion, one hundred thirty-one million, one thousand, twenty".