23101830 has 24 divisors (see below), whose sum is σ = 60064992. Its totient is φ = 6160464.

The previous prime is 23101829. The next prime is 23101843. The reversal of 23101830 is 3810132.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128254 + ... + 128433.

It is an arithmetic number, because the mean of its divisors is an integer number (2502708).

Almost surely, 2^23101830 is an apocalyptic number.

23101830 is an abundant number, since it is smaller than the sum of its proper divisors (36963162).

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

23101830 is a wasteful number, since it uses less digits than its factorization.

23101830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256700 (or 256697 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 23101830 is about 4806.4363097830. The cubic root of 23101830 is about 284.8057771810.

Adding to 23101830 its reverse (3810132), we get a palindrome (26911962).

The spelling of 23101830 in words is "twenty-three million, one hundred one thousand, eight hundred thirty".