20012020113 has 32 divisors (see below), whose sum is σ = 28205229312. Its totient is φ = 12595968000.

The previous prime is 20012020109. The next prime is 20012020121. The reversal of 20012020113 is 31102021002.

It is not a de Polignac number, because 20012020113 - 2² = 20012020109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20012020103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2344293 + ... + 2352813.

It is an arithmetic number, because the mean of its divisors is an integer number (881413416).

Almost surely, 2^20012020113 is an apocalyptic number.

20012020113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20012020113 is a deficient number, since it is larger than the sum of its proper divisors (8193209199).

20012020113 is a wasteful number, since it uses less digits than its factorization.

20012020113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8985.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20012020113 its reverse (31102021002), we get a palindrome (51114041115).

The spelling of 20012020113 in words is "twenty billion, twelve million, twenty thousand, one hundred thirteen".