231441309949 has 2 divisors, whose sum is σ = 231441309950. Its totient is φ = 231441309948.

The previous prime is 231441309941. The next prime is 231441310007. The reversal of 231441309949 is 949903144132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198492525625 + 32948784324 = 445525^2 + 181518^2 .

It is a cyclic number.

It is not a de Polignac number, because 231441309949 - 2³ = 231441309941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231441309941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115720654974 + 115720654975.

It is an arithmetic number, because the mean of its divisors is an integer number (115720654975).

Almost surely, 2^231441309949 is an apocalyptic number.

It is an amenable number.

231441309949 is a deficient number, since it is larger than the sum of its proper divisors (1).

231441309949 is an equidigital number, since it uses as much as digits as its factorization.

231441309949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 231441309949 in words is "two hundred thirty-one billion, four hundred forty-one million, three hundred nine thousand, nine hundred forty-nine".