3197997031 has 2 divisors, whose sum is σ = 3197997032. Its totient is φ = 3197997030.

The previous prime is 3197997013. The next prime is 3197997043. The reversal of 3197997031 is 1307997913.

Together with previous prime (3197997013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3197997031 - 2⁵ = 3197996999 is a prime.

It is a super-2 number, since 2×3197997031² = 20454370020569629922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3197997091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1598998515 + 1598998516.

It is an arithmetic number, because the mean of its divisors is an integer number (1598998516).

Almost surely, 2^3197997031 is an apocalyptic number.

3197997031 is a deficient number, since it is larger than the sum of its proper divisors (1).

3197997031 is an equidigital number, since it uses as much as digits as its factorization.

3197997031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 321489, while the sum is 49.

The square root of 3197997031 is about 56550.8358116836. The cubic root of 3197997031 is about 1473.3050769146.

The spelling of 3197997031 in words is "three billion, one hundred ninety-seven million, nine hundred ninety-seven thousand, thirty-one".