20100132331321 has 4 divisors (see below), whose sum is σ = 22971579807232. Its totient is φ = 17228684855412.

The previous prime is 20100132331319. The next prime is 20100132331327. The reversal of 20100132331321 is 12313323100102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20100132331321 - 2¹ = 20100132331319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20100132331292 and 20100132331301.

It is not an unprimeable number, because it can be changed into a prime (20100132331327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435723737945 + ... + 1435723737958.

It is an arithmetic number, because the mean of its divisors is an integer number (5742894951808).

Almost surely, 2^{20100132331321} is an apocalyptic number.

It is an amenable number.

20100132331321 is a deficient number, since it is larger than the sum of its proper divisors (2871447475911).

20100132331321 is an equidigital number, since it uses as much as digits as its factorization.

20100132331321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871447475910.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20100132331321 its reverse (12313323100102), we get a palindrome (32413455431423).

The spelling of 20100132331321 in words is "twenty trillion, one hundred billion, one hundred thirty-two million, three hundred thirty-one thousand, three hundred twenty-one".