20302102520 has 32 divisors (see below), whose sum is σ = 52205407200. Its totient is φ = 6960720768.

The previous prime is 20302102487. The next prime is 20302102531. The reversal of 20302102520 is 2520120302.

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, 36253475 + ... + 36254034.

It is an arithmetic number, because the mean of its divisors is an integer number (1631418975).

Almost surely, 2^20302102520 is an apocalyptic number.

20302102520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20302102520 is an abundant number, since it is smaller than the sum of its proper divisors (31903304680).

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

20302102520 is a wasteful number, since it uses less digits than its factorization.

20302102520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72507527 (or 72507523 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

Adding to 20302102520 its reverse (2520120302), we get a palindrome (22822222822).

The spelling of 20302102520 in words is "twenty billion, three hundred two million, one hundred two thousand, five hundred twenty".