23031319 has 2 divisors, whose sum is σ = 23031320. Its totient is φ = 23031318.

The previous prime is 23031313. The next prime is 23031329. The reversal of 23031319 is 91313032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23031319 - 2¹³ = 23023127 is a prime.

It is a super-2 number, since 2×23031319² = 1060883309759522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23031319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23031313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11515659 + 11515660.

It is an arithmetic number, because the mean of its divisors is an integer number (11515660).

Almost surely, 2^23031319 is an apocalyptic number.

23031319 is a deficient number, since it is larger than the sum of its proper divisors (1).

23031319 is an equidigital number, since it uses as much as digits as its factorization.

23031319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 23031319 is about 4799.0956439729. The cubic root of 23031319 is about 284.5157221490.

The spelling of 23031319 in words is "twenty-three million, thirty-one thousand, three hundred nineteen".