20112021104 has 40 divisors (see below), whose sum is σ = 45263838048. Its totient is φ = 8478132480.

The previous prime is 20112021089. The next prime is 20112021119. The reversal of 20112021104 is 40112021102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20112021089) and next prime (20112021119).

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 1465067 + ... + 1478730.

Almost surely, 2^20112021104 is an apocalyptic number.

It is an amenable number.

20112021104 is an abundant number, since it is smaller than the sum of its proper divisors (25151816944).

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

20112021104 is a wasteful number, since it uses less digits than its factorization.

20112021104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943873 (or 2943867 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20112021104 its reverse (40112021102), we get a palindrome (60224042206).

The spelling of 20112021104 in words is "twenty billion, one hundred twelve million, twenty-one thousand, one hundred four".