23012251 has 2 divisors, whose sum is σ = 23012252. Its totient is φ = 23012250.

The previous prime is 23012243. The next prime is 23012279. The reversal of 23012251 is 15221032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23012251 - 2³ = 23012243 is a prime.

It is not a weakly prime, because it can be changed into another prime (23012221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11506125 + 11506126.

It is an arithmetic number, because the mean of its divisors is an integer number (11506126).

Almost surely, 2^23012251 is an apocalyptic number.

23012251 is a deficient number, since it is larger than the sum of its proper divisors (1).

23012251 is an equidigital number, since it uses as much as digits as its factorization.

23012251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 23012251 is about 4797.1086083181. The cubic root of 23012251 is about 284.4371820870.

Adding to 23012251 its reverse (15221032), we get a palindrome (38233283).

The spelling of 23012251 in words is "twenty-three million, twelve thousand, two hundred fifty-one".