13121302373 has 2 divisors, whose sum is σ = 13121302374. Its totient is φ = 13121302372.

The previous prime is 13121302309. The next prime is 13121302477. The reversal of 13121302373 is 37320312131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7779592804 + 5341709569 = 88202^2 + 73087^2 .

It is an emirp because it is prime and its reverse (37320312131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13121302373 - 2⁶ = 13121302309 is a prime.

It is a super-2 number, since 2×13121302373² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13121352373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560651186 + 6560651187.

It is an arithmetic number, because the mean of its divisors is an integer number (6560651187).

Almost surely, 2^13121302373 is an apocalyptic number.

It is an amenable number.

13121302373 is a deficient number, since it is larger than the sum of its proper divisors (1).

13121302373 is an equidigital number, since it uses as much as digits as its factorization.

13121302373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 26.

The spelling of 13121302373 in words is "thirteen billion, one hundred twenty-one million, three hundred two thousand, three hundred seventy-three".