1231130597 has 2 divisors, whose sum is σ = 1231130598. Its totient is φ = 1231130596.

The previous prime is 1231130581. The next prime is 1231130627. The reversal of 1231130597 is 7950311321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1115159236 + 115971361 = 33394^2 + 10769^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231130597 - 2⁴ = 1231130581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231130567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615565298 + 615565299.

It is an arithmetic number, because the mean of its divisors is an integer number (615565299).

Almost surely, 2^1231130597 is an apocalyptic number.

It is an amenable number.

1231130597 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231130597 is an equidigital number, since it uses as much as digits as its factorization.

1231130597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 1231130597 is about 35087.4706554918. The cubic root of 1231130597 is about 1071.7694532457.

The spelling of 1231130597 in words is "one billion, two hundred thirty-one million, one hundred thirty thousand, five hundred ninety-seven".