102011013031020 has 48 divisors (see below), whose sum is σ = 285635898981888. Its totient is φ = 27202454665920.

The previous prime is 102011013030989. The next prime is 102011013031097. The reversal of 102011013031020 is 20130310110201.

It is a happy number.

It is a super-2 number, since 2×102011013031020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11647066 + ... + 18430305.

It is an arithmetic number, because the mean of its divisors is an integer number (5950747895456).

Almost surely, 2^{102011013031020} is an apocalyptic number.

102011013031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102011013031020 is an abundant number, since it is smaller than the sum of its proper divisors (183624885950868).

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

102011013031020 is a wasteful number, since it uses less digits than its factorization.

102011013031020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30133910 (or 30133908 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 102011013031020 its reverse (20130310110201), we get a palindrome (122141323141221).

The spelling of 102011013031020 in words is "one hundred two trillion, eleven billion, thirteen million, thirty-one thousand, twenty".