23031907 has 2 divisors, whose sum is σ = 23031908. Its totient is φ = 23031906.

The previous prime is 23031893. The next prime is 23031913. The reversal of 23031907 is 70913032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23031907 - 2⁷ = 23031779 is a prime.

It is not a weakly prime, because it can be changed into another prime (23031917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11515953 + 11515954.

It is an arithmetic number, because the mean of its divisors is an integer number (11515954).

Almost surely, 2^23031907 is an apocalyptic number.

23031907 is a deficient number, since it is larger than the sum of its proper divisors (1).

23031907 is an equidigital number, since it uses as much as digits as its factorization.

23031907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 23031907 is about 4799.1569051241. The cubic root of 23031907 is about 284.5181434002.

Adding to 23031907 its reverse (70913032), we get a palindrome (93944939).

The spelling of 23031907 in words is "twenty-three million, thirty-one thousand, nine hundred seven".