20111311032 has 32 divisors (see below), whose sum is σ = 53235824400. Its totient is φ = 6309430784.

The previous prime is 20111311027. The next prime is 20111311063. The reversal of 20111311032 is 23011311102.

It is a happy number.

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, 24645807 + ... + 24646622.

Almost surely, 2^20111311032 is an apocalyptic number.

It is an amenable number.

20111311032 is an abundant number, since it is smaller than the sum of its proper divisors (33124513368).

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

20111311032 is a wasteful number, since it uses less digits than its factorization.

20111311032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49292455 (or 49292451 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 20111311032 its reverse (23011311102), we get a palindrome (43122622134).

The spelling of 20111311032 in words is "twenty billion, one hundred eleven million, three hundred eleven thousand, thirty-two".