23013510 has 32 divisors (see below), whose sum is σ = 59482080. Its totient is φ = 5664768.

The previous prime is 23013509. The next prime is 23013511. The reversal of 23013510 is 1531032.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23013509) and next prime (23013511).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 23013510.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23013511) 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, 29115 + ... + 29894.

It is an arithmetic number, because the mean of its divisors is an integer number (1858815).

Almost surely, 2^23013510 is an apocalyptic number.

23013510 is an abundant number, since it is smaller than the sum of its proper divisors (36468570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23013510 is a wasteful number, since it uses less digits than its factorization.

23013510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59032.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 23013510 is about 4797.2398314031. The cubic root of 23013510 is about 284.4423691775.

Adding to 23013510 its reverse (1531032), we get a palindrome (24544542).

The spelling of 23013510 in words is "twenty-three million, thirteen thousand, five hundred ten".