23212507 has 2 divisors, whose sum is σ = 23212508. Its totient is φ = 23212506.

The previous prime is 23212493. The next prime is 23212517. The reversal of 23212507 is 70521232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23212507 - 2⁷ = 23212379 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (23212517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11606253 + 11606254.

It is an arithmetic number, because the mean of its divisors is an integer number (11606254).

Almost surely, 2^23212507 is an apocalyptic number.

23212507 is a deficient number, since it is larger than the sum of its proper divisors (1).

23212507 is an equidigital number, since it uses as much as digits as its factorization.

23212507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 23212507 is about 4817.9359688564. The cubic root of 23212507 is about 285.2598717204.

Adding to 23212507 its reverse (70521232), we get a palindrome (93733739).

The spelling of 23212507 in words is "twenty-three million, two hundred twelve thousand, five hundred seven".