97888129331 has 2 divisors, whose sum is σ = 97888129332. Its totient is φ = 97888129330.

The previous prime is 97888129327. The next prime is 97888129349. The reversal of 97888129331 is 13392188879.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97888129331 - 2² = 97888129327 is a prime.

It is a super-2 number, since 2×97888129331² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (97888129351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48944064665 + 48944064666.

It is an arithmetic number, because the mean of its divisors is an integer number (48944064666).

Almost surely, 2^97888129331 is an apocalyptic number.

97888129331 is a deficient number, since it is larger than the sum of its proper divisors (1).

97888129331 is an equidigital number, since it uses as much as digits as its factorization.

97888129331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 59.

The spelling of 97888129331 in words is "ninety-seven billion, eight hundred eighty-eight million, one hundred twenty-nine thousand, three hundred thirty-one".