30231131923 has 2 divisors, whose sum is σ = 30231131924. Its totient is φ = 30231131922.

The previous prime is 30231131911. The next prime is 30231131929. The reversal of 30231131923 is 32913113203.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30231131923 - 2¹⁷ = 30231000851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30231131891 and 30231131900.

It is not a weakly prime, because it can be changed into another prime (30231131929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15115565961 + 15115565962.

It is an arithmetic number, because the mean of its divisors is an integer number (15115565962).

Almost surely, 2^30231131923 is an apocalyptic number.

30231131923 is a deficient number, since it is larger than the sum of its proper divisors (1).

30231131923 is an equidigital number, since it uses as much as digits as its factorization.

30231131923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 28.

The spelling of 30231131923 in words is "thirty billion, two hundred thirty-one million, one hundred thirty-one thousand, nine hundred twenty-three".