1213246111579 has 2 divisors, whose sum is σ = 1213246111580. Its totient is φ = 1213246111578.

The previous prime is 1213246111549. The next prime is 1213246111607. The reversal of 1213246111579 is 9751116423121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1213246111579 - 2²¹ = 1213244014427 is a prime.

It is a super-2 number, since 2×1213246111579² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1213246111549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606623055789 + 606623055790.

It is an arithmetic number, because the mean of its divisors is an integer number (606623055790).

Almost surely, 2^{1213246111579} is an apocalyptic number.

1213246111579 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213246111579 is an equidigital number, since it uses as much as digits as its factorization.

1213246111579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 43.

The spelling of 1213246111579 in words is "one trillion, two hundred thirteen billion, two hundred forty-six million, one hundred eleven thousand, five hundred seventy-nine".