20131323324269 has 2 divisors, whose sum is σ = 20131323324270. Its totient is φ = 20131323324268.

The previous prime is 20131323324199. The next prime is 20131323324323. The reversal of 20131323324269 is 96242332313102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17297588767369 + 2833734556900 = 4159037^2 + 1683370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20131323324269 is a prime.

It is a super-3 number, since 3×20131323324269³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20131323524269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065661662134 + 10065661662135.

It is an arithmetic number, because the mean of its divisors is an integer number (10065661662135).

Almost surely, 2^{20131323324269} is an apocalyptic number.

It is an amenable number.

20131323324269 is a deficient number, since it is larger than the sum of its proper divisors (1).

20131323324269 is an equidigital number, since it uses as much as digits as its factorization.

20131323324269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 41.

The spelling of 20131323324269 in words is "twenty trillion, one hundred thirty-one billion, three hundred twenty-three million, three hundred twenty-four thousand, two hundred sixty-nine".