231134431049 has 2 divisors, whose sum is σ = 231134431050. Its totient is φ = 231134431048.

The previous prime is 231134431043. The next prime is 231134431069. The reversal of 231134431049 is 940134431132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229783133449 + 1351297600 = 479357^2 + 36760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231134431049 is a prime.

It is not a weakly prime, because it can be changed into another prime (231134431043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115567215524 + 115567215525.

It is an arithmetic number, because the mean of its divisors is an integer number (115567215525).

Almost surely, 2^231134431049 is an apocalyptic number.

It is an amenable number.

231134431049 is a deficient number, since it is larger than the sum of its proper divisors (1).

231134431049 is an equidigital number, since it uses as much as digits as its factorization.

231134431049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 231134431049 in words is "two hundred thirty-one billion, one hundred thirty-four million, four hundred thirty-one thousand, forty-nine".