23115020 has 48 divisors (see below), whose sum is σ = 52012800. Its totient is φ = 8602560.

The previous prime is 23114999. The next prime is 23115041. The reversal of 23115020 is 2051132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23114999) and next prime (23115041).

It is a junction number, because it is equal to n+sod(n) for n = 23114986 and 23115004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21905 + ... + 22935.

It is an arithmetic number, because the mean of its divisors is an integer number (1083600).

Almost surely, 2^23115020 is an apocalyptic number.

23115020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23115020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26006400).

23115020 is an abundant number, since it is smaller than the sum of its proper divisors (28897780).

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

23115020 is a wasteful number, since it uses less digits than its factorization.

23115020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118 (or 1116 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 23115020 is about 4807.8082324485. The cubic root of 23115020 is about 284.8599701964.

Adding to 23115020 its reverse (2051132), we get a palindrome (25166152).

It can be divided in two parts, 231 and 15020, that added together give a palindrome (15251).

The spelling of 23115020 in words is "twenty-three million, one hundred fifteen thousand, twenty".