1213423125179 has 2 divisors, whose sum is σ = 1213423125180. Its totient is φ = 1213423125178.

The previous prime is 1213423125157. The next prime is 1213423125281. The reversal of 1213423125179 is 9715213243121.

It is a weak prime.

It is an emirp because it is prime and its reverse (9715213243121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213423125179 - 2¹² = 1213423121083 is a prime.

It is a super-2 number, since 2×1213423125179² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1213425125179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606711562589 + 606711562590.

It is an arithmetic number, because the mean of its divisors is an integer number (606711562590).

Almost surely, 2^{1213423125179} is an apocalyptic number.

1213423125179 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213423125179 is an equidigital number, since it uses as much as digits as its factorization.

1213423125179 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 41.

The spelling of 1213423125179 in words is "one trillion, two hundred thirteen billion, four hundred twenty-three million, one hundred twenty-five thousand, one hundred seventy-nine".