23031135 has 80 divisors (see below), whose sum is σ = 45128160. Its totient is φ = 11197440.

The previous prime is 23031121. The next prime is 23031157. The reversal of 23031135 is 53113032.

It is not a de Polignac number, because 23031135 - 2⁵ = 23031103 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 315459 + ... + 315531.

It is an arithmetic number, because the mean of its divisors is an integer number (564102).

Almost surely, 2^23031135 is an apocalyptic number.

23031135 is a deficient number, since it is larger than the sum of its proper divisors (22097025).

23031135 is a wasteful number, since it uses less digits than its factorization.

23031135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 23031135 is about 4799.0764736562. The cubic root of 23031135 is about 284.5149644702.

Adding to 23031135 its reverse (53113032), we get a palindrome (76144167).

The spelling of 23031135 in words is "twenty-three million, thirty-one thousand, one hundred thirty-five".