997336910747131 has 2 divisors, whose sum is σ = 997336910747132. Its totient is φ = 997336910747130.

The previous prime is 997336910747077. The next prime is 997336910747143. The reversal of 997336910747131 is 131747019633799.

997336910747131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 997336910747131 - 2²⁷ = 997336776529403 is a prime.

It is a super-2 number, since 2×997336910747131² (a number of 31 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (997336910847131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498668455373565 + 498668455373566.

It is an arithmetic number, because the mean of its divisors is an integer number (498668455373566).

Almost surely, 2^{997336910747131} is an apocalyptic number.

997336910747131 is a deficient number, since it is larger than the sum of its proper divisors (1).

997336910747131 is an equidigital number, since it uses as much as digits as its factorization.

997336910747131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162030456, while the sum is 70.

The spelling of 997336910747131 in words is "nine hundred ninety-seven trillion, three hundred thirty-six billion, nine hundred ten million, seven hundred forty-seven thousand, one hundred thirty-one".