20113151532 has 12 divisors (see below), whose sum is σ = 46930686936. Its totient is φ = 6704383840.

The previous prime is 20113151519. The next prime is 20113151599. The reversal of 20113151532 is 23515131102.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838047969 + ... + 838047992.

It is an arithmetic number, because the mean of its divisors is an integer number (3910890578).

Almost surely, 2^20113151532 is an apocalyptic number.

It is an amenable number.

20113151532 is an abundant number, since it is smaller than the sum of its proper divisors (26817535404).

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

20113151532 is a wasteful number, since it uses less digits than its factorization.

20113151532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676095968 (or 1676095966 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 20113151532 its reverse (23515131102), we get a palindrome (43628282634).

The spelling of 20113151532 in words is "twenty billion, one hundred thirteen million, one hundred fifty-one thousand, five hundred thirty-two".