1137320691971 has 2 divisors, whose sum is σ = 1137320691972. Its totient is φ = 1137320691970.

The previous prime is 1137320691959. The next prime is 1137320691973. The reversal of 1137320691971 is 1791960237311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1137320691971 - 2¹⁸ = 1137320429827 is a prime.

It is a Sophie Germain prime.

Together with 1137320691973, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1137320691973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568660345985 + 568660345986.

It is an arithmetic number, because the mean of its divisors is an integer number (568660345986).

Almost surely, 2^{1137320691971} is an apocalyptic number.

1137320691971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1137320691971 is an equidigital number, since it uses as much as digits as its factorization.

1137320691971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 428652, while the sum is 50.

The spelling of 1137320691971 in words is "one trillion, one hundred thirty-seven billion, three hundred twenty million, six hundred ninety-one thousand, nine hundred seventy-one".