32013131020 has 96 divisors (see below), whose sum is σ = 73900112832. Its totient is φ = 11575968768.

The previous prime is 32013130949. The next prime is 32013131081. The reversal of 32013131020 is 2013131023.

It is a junction number, because it is equal to n+sod(n) for n = 32013130985 and 32013131003.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8858734 + ... + 8862346.

It is an arithmetic number, because the mean of its divisors is an integer number (769792842).

Almost surely, 2^32013131020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32013131020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36950056416).

32013131020 is an abundant number, since it is smaller than the sum of its proper divisors (41886981812).

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

32013131020 is a wasteful number, since it uses less digits than its factorization.

32013131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4331 (or 4329 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 32013131020 its reverse (2013131023), we get a palindrome (34026262043).

The spelling of 32013131020 in words is "thirty-two billion, thirteen million, one hundred thirty-one thousand, twenty".