23131351 has 2 divisors, whose sum is σ = 23131352. Its totient is φ = 23131350.

The previous prime is 23131333. The next prime is 23131369. The reversal of 23131351 is 15313132.

It is a balanced prime because it is at equal distance from previous prime (23131333) and next prime (23131369).

It is a cyclic number.

It is not a de Polignac number, because 23131351 - 2⁹ = 23130839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23131391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11565675 + 11565676.

It is an arithmetic number, because the mean of its divisors is an integer number (11565676).

Almost surely, 2^23131351 is an apocalyptic number.

23131351 is a deficient number, since it is larger than the sum of its proper divisors (1).

23131351 is an equidigital number, since it uses as much as digits as its factorization.

23131351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270, while the sum is 19.

The square root of 23131351 is about 4809.5063156212. The cubic root of 23131351 is about 284.9270399059.

Adding to 23131351 its reverse (15313132), we get a palindrome (38444483).

The spelling of 23131351 in words is "twenty-three million, one hundred thirty-one thousand, three hundred fifty-one".