323121100020133 has 4 divisors (see below), whose sum is σ = 323390143401868. Its totient is φ = 322852056638400.

The previous prime is 323121100020113. The next prime is 323121100020157. The reversal of 323121100020133 is 331020001121323.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 103399978542084 + 219721121478049 = 10168578^2 + 14822993^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323121100020133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323121100020113) 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, 134521689066 + ... + 134521691467.

It is an arithmetic number, because the mean of its divisors is an integer number (80847535850467).

Almost surely, 2^{323121100020133} is an apocalyptic number.

It is an amenable number.

323121100020133 is a deficient number, since it is larger than the sum of its proper divisors (269043381735).

323121100020133 is a wasteful number, since it uses less digits than its factorization.

323121100020133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269043381734.

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

Adding to 323121100020133 its reverse (331020001121323), we get a palindrome (654141101141456).

The spelling of 323121100020133 in words is "three hundred twenty-three trillion, one hundred twenty-one billion, one hundred million, twenty thousand, one hundred thirty-three".