10131210997 has 2 divisors, whose sum is σ = 10131210998. Its totient is φ = 10131210996.

The previous prime is 10131210977. The next prime is 10131211001. The reversal of 10131210997 is 79901213101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8970173521 + 1161037476 = 94711^2 + 34074^2 .

It is a cyclic number.

It is not a de Polignac number, because 10131210997 - 2²⁷ = 9996993269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10131210937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5065605498 + 5065605499.

It is an arithmetic number, because the mean of its divisors is an integer number (5065605499).

Almost surely, 2^10131210997 is an apocalyptic number.

It is an amenable number.

10131210997 is a deficient number, since it is larger than the sum of its proper divisors (1).

10131210997 is an equidigital number, since it uses as much as digits as its factorization.

10131210997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 34.

The spelling of 10131210997 in words is "ten billion, one hundred thirty-one million, two hundred ten thousand, nine hundred ninety-seven".