231310029949 has 2 divisors, whose sum is σ = 231310029950. Its totient is φ = 231310029948.

The previous prime is 231310029913. The next prime is 231310030073. The reversal of 231310029949 is 949920013132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224064956025 + 7245073924 = 473355^2 + 85118^2 .

It is a cyclic number.

It is not a de Polignac number, because 231310029949 - 2⁹ = 231310029437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231310029149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115655014974 + 115655014975.

It is an arithmetic number, because the mean of its divisors is an integer number (115655014975).

Almost surely, 2^231310029949 is an apocalyptic number.

It is an amenable number.

231310029949 is a deficient number, since it is larger than the sum of its proper divisors (1).

231310029949 is an equidigital number, since it uses as much as digits as its factorization.

231310029949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 43.

The spelling of 231310029949 in words is "two hundred thirty-one billion, three hundred ten million, twenty-nine thousand, nine hundred forty-nine".