20311033032 has 48 divisors (see below), whose sum is σ = 55019737500. Its totient is φ = 6769028736.

The previous prime is 20311032997. The next prime is 20311033051. The reversal of 20311033032 is 23033011302.

20311033032 is a `hidden beast` number, since 20 + 311 + 0 + 330 + 3 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12309014916 + 8002018116 = 110946^2 + 89454^2 .

It is a super-2 number, since 2×20311033032² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20311032996 and 20311033014.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 389394 + ... + 438462.

Almost surely, 2^20311033032 is an apocalyptic number.

It is an amenable number.

20311033032 is an abundant number, since it is smaller than the sum of its proper divisors (34708704468).

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

20311033032 is a wasteful number, since it uses less digits than its factorization.

20311033032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54830 (or 54823 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20311033032 its reverse (23033011302), we get a palindrome (43344044334).

The spelling of 20311033032 in words is "twenty billion, three hundred eleven million, thirty-three thousand, thirty-two".