20112121032 has 64 divisors (see below), whose sum is σ = 50902862400. Its totient is φ = 6621204480.

The previous prime is 20112121019. The next prime is 20112121063. The reversal of 20112121032 is 23012121102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2069208 + ... + 2078904.

It is an arithmetic number, because the mean of its divisors is an integer number (795357225).

Almost surely, 2^20112121032 is an apocalyptic number.

It is an amenable number.

20112121032 is an abundant number, since it is smaller than the sum of its proper divisors (30790741368).

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

20112121032 is a wasteful number, since it uses less digits than its factorization.

20112121032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10766 (or 10762 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20112121032 its reverse (23012121102), we get a palindrome (43124242134).

The spelling of 20112121032 in words is "twenty billion, one hundred twelve million, one hundred twenty-one thousand, thirty-two".