20010231020020 has 24 divisors (see below), whose sum is σ = 42414209306784. Its totient is φ = 7929287805216.

The previous prime is 20010231019973. The next prime is 20010231020063. The reversal of 20010231020020 is 2002013201002.

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, 4675285482 + ... + 4675289761.

It is an arithmetic number, because the mean of its divisors is an integer number (1767258721116).

Almost surely, 2^{20010231020020} is an apocalyptic number.

20010231020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010231020020 is an abundant number, since it is smaller than the sum of its proper divisors (22403978286764).

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

20010231020020 is a wasteful number, since it uses less digits than its factorization.

20010231020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9350575359 (or 9350575357 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20010231020020 its reverse (2002013201002), we get a palindrome (22012244221022).

The spelling of 20010231020020 in words is "twenty trillion, ten billion, two hundred thirty-one million, twenty thousand, twenty".