102031130020 has 12 divisors (see below), whose sum is σ = 214265373084. Its totient is φ = 40812452000.

The previous prime is 102031129951. The next prime is 102031130023. The reversal of 102031130020 is 20031130201.

It can be written as a sum of positive squares in 2 ways, for example, as 59539904064 + 42491225956 = 244008^2 + 206134^2 .

It is not an unprimeable number, because it can be changed into a prime (102031130023) 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, 2550778231 + ... + 2550778270.

It is an arithmetic number, because the mean of its divisors is an integer number (17855447757).

Almost surely, 2^102031130020 is an apocalyptic number.

102031130020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102031130020 is an abundant number, since it is smaller than the sum of its proper divisors (112234243064).

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

102031130020 is a wasteful number, since it uses less digits than its factorization.

102031130020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101556510 (or 5101556508 counting only the distinct ones).

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

Adding to 102031130020 its reverse (20031130201), we get a palindrome (122062260221).

The spelling of 102031130020 in words is "one hundred two billion, thirty-one million, one hundred thirty thousand, twenty".