103131101020 has 24 divisors (see below), whose sum is σ = 216581987664. Its totient is φ = 41251168896.

The previous prime is 103131101009. The next prime is 103131101023. The reversal of 103131101020 is 20101131301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103131101023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851784 + ... + 965296.

It is an arithmetic number, because the mean of its divisors is an integer number (9024249486).

Almost surely, 2^103131101020 is an apocalyptic number.

103131101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103131101020 is an abundant number, since it is smaller than the sum of its proper divisors (113450886644).

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

103131101020 is a wasteful number, since it uses less digits than its factorization.

103131101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158949 (or 158947 counting only the distinct ones).

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

Adding to 103131101020 its reverse (20101131301), we get a palindrome (123232232321).

The spelling of 103131101020 in words is "one hundred three billion, one hundred thirty-one million, one hundred one thousand, twenty".