23011397 has 2 divisors, whose sum is σ = 23011398. Its totient is φ = 23011396.

The previous prime is 23011379. The next prime is 23011427. The reversal of 23011397 is 79311032.

Together with previous prime (23011379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22600516 + 410881 = 4754^2 + 641^2 .

It is a cyclic number.

It is not a de Polignac number, because 23011397 - 2⁸ = 23011141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23011367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11505698 + 11505699.

It is an arithmetic number, because the mean of its divisors is an integer number (11505699).

Almost surely, 2^23011397 is an apocalyptic number.

It is an amenable number.

23011397 is a deficient number, since it is larger than the sum of its proper divisors (1).

23011397 is an equidigital number, since it uses as much as digits as its factorization.

23011397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 23011397 is about 4797.0195955405. The cubic root of 23011397 is about 284.4336634923.

The spelling of 23011397 in words is "twenty-three million, eleven thousand, three hundred ninety-seven".