101312311020 has 48 divisors (see below), whose sum is σ = 285839947008. Its totient is φ = 26810380480.

The previous prime is 101312311013. The next prime is 101312311027. The reversal of 101312311020 is 20113213101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (101312311013) and next prime (101312311027).

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

It is not an unprimeable number, because it can be changed into a prime (101312311027) by changing a digit.

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, 6436944 + ... + 6452663.

It is an arithmetic number, because the mean of its divisors is an integer number (5954998896).

Almost surely, 2^101312311020 is an apocalyptic number.

101312311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101312311020 is an abundant number, since it is smaller than the sum of its proper divisors (184527635988).

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

101312311020 is a wasteful number, since it uses less digits than its factorization.

101312311020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12889750 (or 12889748 counting only the distinct ones).

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

Adding to 101312311020 its reverse (20113213101), we get a palindrome (121425524121).

The spelling of 101312311020 in words is "one hundred one billion, three hundred twelve million, three hundred eleven thousand, twenty".