231322010149 has 2 divisors, whose sum is σ = 231322010150. Its totient is φ = 231322010148.

The previous prime is 231322010111. The next prime is 231322010197. The reversal of 231322010149 is 941010223132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153865554049 + 77456456100 = 392257^2 + 278310^2 .

It is a cyclic number.

It is not a de Polignac number, because 231322010149 - 2²³ = 231313621541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231322010449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115661005074 + 115661005075.

It is an arithmetic number, because the mean of its divisors is an integer number (115661005075).

Almost surely, 2^231322010149 is an apocalyptic number.

It is an amenable number.

231322010149 is a deficient number, since it is larger than the sum of its proper divisors (1).

231322010149 is an equidigital number, since it uses as much as digits as its factorization.

231322010149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 231322010149 in words is "two hundred thirty-one billion, three hundred twenty-two million, ten thousand, one hundred forty-nine".