23130397 has 2 divisors, whose sum is σ = 23130398. Its totient is φ = 23130396.

The previous prime is 23130389. The next prime is 23130409. The reversal of 23130397 is 79303132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23097636 + 32761 = 4806^2 + 181^2 .

It is a cyclic number.

It is not a de Polignac number, because 23130397 - 2³ = 23130389 is a prime.

It is a super-3 number, since 3×23130397³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23130347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11565198 + 11565199.

It is an arithmetic number, because the mean of its divisors is an integer number (11565199).

Almost surely, 2^23130397 is an apocalyptic number.

It is an amenable number.

23130397 is a deficient number, since it is larger than the sum of its proper divisors (1).

23130397 is an equidigital number, since it uses as much as digits as its factorization.

23130397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 28.

The square root of 23130397 is about 4809.4071360200. The cubic root of 23130397 is about 284.9231227960.

It can be divided in two parts, 231 and 30397, that added together give a triangular number (30628 = T₂₄₇).

The spelling of 23130397 in words is "twenty-three million, one hundred thirty thousand, three hundred ninety-seven".