231997119007 has 2 divisors, whose sum is σ = 231997119008. Its totient is φ = 231997119006.

The previous prime is 231997118971. The next prime is 231997119031. The reversal of 231997119007 is 700911799132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231997119007 - 2¹⁹ = 231996594719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231997119037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115998559503 + 115998559504.

It is an arithmetic number, because the mean of its divisors is an integer number (115998559504).

Almost surely, 2^231997119007 is an apocalyptic number.

231997119007 is a deficient number, since it is larger than the sum of its proper divisors (1).

231997119007 is an equidigital number, since it uses as much as digits as its factorization.

231997119007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 214326, while the sum is 49.

The spelling of 231997119007 in words is "two hundred thirty-one billion, nine hundred ninety-seven million, one hundred nineteen thousand, seven".