23031030149 has 2 divisors, whose sum is σ = 23031030150. Its totient is φ = 23031030148.

The previous prime is 23031030089. The next prime is 23031030157. The reversal of 23031030149 is 94103013032.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20218849249 + 2812180900 = 142193^2 + 53030^2 .

It is a cyclic number.

It is not a de Polignac number, because 23031030149 - 2¹⁶ = 23030964613 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23031039149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11515515074 + 11515515075.

It is an arithmetic number, because the mean of its divisors is an integer number (11515515075).

Almost surely, 2^23031030149 is an apocalyptic number.

It is an amenable number.

23031030149 is a deficient number, since it is larger than the sum of its proper divisors (1).

23031030149 is an equidigital number, since it uses as much as digits as its factorization.

23031030149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 23031030149 in words is "twenty-three billion, thirty-one million, thirty thousand, one hundred forty-nine".