20010111013020 has 48 divisors (see below), whose sum is σ = 56583046604448. Its totient is φ = 5283197625600.

The previous prime is 20010111013007. The next prime is 20010111013049. The reversal of 20010111013020 is 2031011101002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20010111012987 and 20010111013005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1650993199 + ... + 1651005318.

It is an arithmetic number, because the mean of its divisors is an integer number (1178813470926).

Almost surely, 2^{20010111013020} is an apocalyptic number.

20010111013020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010111013020 is an abundant number, since it is smaller than the sum of its proper divisors (36572935591428).

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

20010111013020 is a wasteful number, since it uses less digits than its factorization.

20010111013020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3301998630 (or 3301998628 counting only the distinct ones).

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

Adding to 20010111013020 its reverse (2031011101002), we get a palindrome (22041122114022).

The spelling of 20010111013020 in words is "twenty trillion, ten billion, one hundred eleven million, thirteen thousand, twenty".