23231120 has 40 divisors (see below), whose sum is σ = 58924800. Its totient is φ = 8447360.

The previous prime is 23231107. The next prime is 23231123. The reversal of 23231120 is 2113232.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 23231095 and 23231104.

It is not an unprimeable number, because it can be changed into a prime (23231123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12320 + ... + 14079.

It is an arithmetic number, because the mean of its divisors is an integer number (1473120).

Almost surely, 2^23231120 is an apocalyptic number.

23231120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23231120 is an abundant number, since it is smaller than the sum of its proper divisors (35693680).

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

23231120 is a wasteful number, since it uses less digits than its factorization.

23231120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26423 (or 26417 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 23231120 is about 4819.8672180881. The cubic root of 23231120 is about 285.3360967697.

Adding to 23231120 its reverse (2113232), we get a palindrome (25344352).

It can be divided in two parts, 2323 and 1120, that added together give a palindrome (3443).

The spelling of 23231120 in words is "twenty-three million, two hundred thirty-one thousand, one hundred twenty".