13231222373 has 2 divisors, whose sum is σ = 13231222374. Its totient is φ = 13231222372.

The previous prime is 13231222369. The next prime is 13231222409. The reversal of 13231222373 is 37322213231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12103740289 + 1127482084 = 110017^2 + 33578^2 .

It is a cyclic number.

It is not a de Polignac number, because 13231222373 - 2² = 13231222369 is a prime.

It is a super-2 number, since 2×13231222373² (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 (13231222273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6615611186 + 6615611187.

It is an arithmetic number, because the mean of its divisors is an integer number (6615611187).

Almost surely, 2^13231222373 is an apocalyptic number.

It is an amenable number.

13231222373 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231222373 is an equidigital number, since it uses as much as digits as its factorization.

13231222373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 29.

The spelling of 13231222373 in words is "thirteen billion, two hundred thirty-one million, two hundred twenty-two thousand, three hundred seventy-three".