20311233100325 has 24 divisors (see below), whose sum is σ = 25439247010920. Its totient is φ = 16085605536000.

The previous prime is 20311233100273. The next prime is 20311233100331. The reversal of 20311233100325 is 52300133211302.

It can be written as a sum of positive squares in 12 ways, for example, as 12645605396356 + 7665627703969 = 3556066^2 + 2768687^2 .

It is not a de Polignac number, because 20311233100325 - 2⁸ = 20311233100069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20311233100294 and 20311233100303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15712487 + ... + 16955963.

It is an arithmetic number, because the mean of its divisors is an integer number (1059968625455).

Almost surely, 2^{20311233100325} is an apocalyptic number.

20311233100325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20311233100325 is a deficient number, since it is larger than the sum of its proper divisors (5128013910595).

20311233100325 is a wasteful number, since it uses less digits than its factorization.

20311233100325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250057 (or 1250052 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 20311233100325 its reverse (52300133211302), we get a palindrome (72611366311627).

The spelling of 20311233100325 in words is "twenty trillion, three hundred eleven billion, two hundred thirty-three million, one hundred thousand, three hundred twenty-five".