101010112020 has 60 divisors (see below), whose sum is σ = 316872467604. Its totient is φ = 26936029440.

The previous prime is 101010112013. The next prime is 101010112139. The reversal of 101010112020 is 20211010101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 77219517456 + 23790594564 = 277884^2 + 154242^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 101010111993 and 101010112011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31174341 + ... + 31177580.

Almost surely, 2^101010112020 is an apocalyptic number.

101010112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101010112020 is an abundant number, since it is smaller than the sum of its proper divisors (215862355584).

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

101010112020 is a wasteful number, since it uses less digits than its factorization.

101010112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62351942 (or 62351931 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 101010112020 its reverse (20211010101), we get a palindrome (121221122121).

It can be divided in two parts, 1010101 and 12020, that added together give a square (1022121 = 1011²).

The spelling of 101010112020 in words is "one hundred one billion, ten million, one hundred twelve thousand, twenty".