101311031020 has 12 divisors (see below), whose sum is σ = 212753165184. Its totient is φ = 40524412400.

The previous prime is 101311031009. The next prime is 101311031033. The reversal of 101311031020 is 20130113101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2532775756 + ... + 2532775795.

It is an arithmetic number, because the mean of its divisors is an integer number (17729430432).

Almost surely, 2^101311031020 is an apocalyptic number.

101311031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101311031020 is an abundant number, since it is smaller than the sum of its proper divisors (111442134164).

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

101311031020 is a wasteful number, since it uses less digits than its factorization.

101311031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065551560 (or 5065551558 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 101311031020 its reverse (20130113101), we get a palindrome (121441144121).

The spelling of 101311031020 in words is "one hundred one billion, three hundred eleven million, thirty-one thousand, twenty".