20311323130 has 16 divisors (see below), whose sum is σ = 41783293440. Its totient is φ = 6963882192.

The previous prime is 20311323113. The next prime is 20311323139. The reversal of 20311323130 is 3132311302.

It is a junction number, because it is equal to n+sod(n) for n = 20311323098 and 20311323107.

It is not an unprimeable number, because it can be changed into a prime (20311323139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145080810 + ... + 145080949.

It is an arithmetic number, because the mean of its divisors is an integer number (2611455840).

Almost surely, 2^20311323130 is an apocalyptic number.

20311323130 is an abundant number, since it is smaller than the sum of its proper divisors (21471970310).

20311323130 is a wasteful number, since it uses less digits than its factorization.

20311323130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290161773.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 20311323130 its reverse (3132311302), we get a palindrome (23443634432).

The spelling of 20311323130 in words is "twenty billion, three hundred eleven million, three hundred twenty-three thousand, one hundred thirty".