23135331 has 16 divisors (see below), whose sum is σ = 33520640. Its totient is φ = 14139360.

The previous prime is 23135303. The next prime is 23135339. The reversal of 23135331 is 13353132.

It is not a de Polignac number, because 23135331 - 2⁹ = 23134819 is a prime.

It is a super-2 number, since 2×23135331² = 1070487080959122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23135298 and 23135307.

It is not an unprimeable number, because it can be changed into a prime (23135339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4780 + ... + 8313.

It is an arithmetic number, because the mean of its divisors is an integer number (2095040).

Almost surely, 2^23135331 is an apocalyptic number.

23135331 is a deficient number, since it is larger than the sum of its proper divisors (10385309).

23135331 is a wasteful number, since it uses less digits than its factorization.

23135331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13146.

The product of its digits is 810, while the sum is 21.

The square root of 23135331 is about 4809.9200617058. The cubic root of 23135331 is about 284.9433805653.

Adding to 23135331 its reverse (13353132), we get a palindrome (36488463).

The spelling of 23135331 in words is "twenty-three million, one hundred thirty-five thousand, three hundred thirty-one".