11611371383971 has 2 divisors, whose sum is σ = 11611371383972. Its totient is φ = 11611371383970.

The previous prime is 11611371383929. The next prime is 11611371384071. The reversal of 11611371383971 is 17938317311611.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11611371383971 is a prime.

It is not a weakly prime, because it can be changed into another prime (11611371383371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5805685691985 + 5805685691986.

It is an arithmetic number, because the mean of its divisors is an integer number (5805685691986).

Almost surely, 2^{11611371383971} is an apocalyptic number.

11611371383971 is a deficient number, since it is larger than the sum of its proper divisors (1).

11611371383971 is an equidigital number, since it uses as much as digits as its factorization.

11611371383971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 52.

The spelling of 11611371383971 in words is "eleven trillion, six hundred eleven billion, three hundred seventy-one million, three hundred eighty-three thousand, nine hundred seventy-one".