20311033030 has 16 divisors (see below), whose sum is σ = 36574723440. Its totient is φ = 8121110112.

The previous prime is 20311032997. The next prime is 20311033051. The reversal of 20311033030 is 3033011302.

It is a junction number, because it is equal to n+sod(n) for n = 20311032995 and 20311033013.

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, 386985 + ... + 436324.

It is an arithmetic number, because the mean of its divisors is an integer number (2285920215).

Almost surely, 2^20311033030 is an apocalyptic number.

20311033030 is a deficient number, since it is larger than the sum of its proper divisors (16263690410).

20311033030 is a wasteful number, since it uses less digits than its factorization.

20311033030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825783.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 20311033030 its reverse (3033011302), we get a palindrome (23344044332).

The spelling of 20311033030 in words is "twenty billion, three hundred eleven million, thirty-three thousand, thirty".