20051521114 has 12 divisors (see below), whose sum is σ = 31950608094. Its totient is φ = 9436009664.

The previous prime is 20051521013. The next prime is 20051521159. The reversal of 20051521114 is 41112515002.

It can be written as a sum of positive squares in 3 ways, for example, as 19483413889 + 568107225 = 139583^2 + 23835^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17345029 + ... + 17346184.

Almost surely, 2^20051521114 is an apocalyptic number.

20051521114 is a deficient number, since it is larger than the sum of its proper divisors (11899086980).

20051521114 is a wasteful number, since it uses less digits than its factorization.

20051521114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34691249 (or 34691232 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The spelling of 20051521114 in words is "twenty billion, fifty-one million, five hundred twenty-one thousand, one hundred fourteen".