20302312020 has 24 divisors (see below), whose sum is σ = 56846473824. Its totient is φ = 5413949856.

The previous prime is 20302311983. The next prime is 20302312031. The reversal of 20302312020 is 2021320302.

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

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, 169185874 + ... + 169185993.

It is an arithmetic number, because the mean of its divisors is an integer number (2368603076).

Almost surely, 2^20302312020 is an apocalyptic number.

20302312020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20302312020 is an abundant number, since it is smaller than the sum of its proper divisors (36544161804).

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

20302312020 is a wasteful number, since it uses less digits than its factorization.

20302312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338371879 (or 338371877 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20302312020 its reverse (2021320302), we get a palindrome (22323632322).

The spelling of 20302312020 in words is "twenty billion, three hundred two million, three hundred twelve thousand, twenty".