20310101020 has 24 divisors (see below), whose sum is σ = 46528595568. Its totient is φ = 7385491200.

The previous prime is 20310101011. The next prime is 20310101039. The reversal of 20310101020 is 2010101302.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20310100988 and 20310101006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46159101 + ... + 46159540.

It is an arithmetic number, because the mean of its divisors is an integer number (1938691482).

Almost surely, 2^20310101020 is an apocalyptic number.

20310101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20310101020 is an abundant number, since it is smaller than the sum of its proper divisors (26218494548).

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

20310101020 is a wasteful number, since it uses less digits than its factorization.

20310101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92318661 (or 92318659 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20310101020 its reverse (2010101302), we get a palindrome (22320202322).

The spelling of 20310101020 in words is "twenty billion, three hundred ten million, one hundred one thousand, twenty".