23231223021000 has 128 divisors (see below), whose sum is σ = 74819526312960. Its totient is φ = 5995154304000.

The previous prime is 23231223020989. The next prime is 23231223021007. The reversal of 23231223021000 is 12032213232.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23231223021007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124806049 + ... + 124992048.

It is an arithmetic number, because the mean of its divisors is an integer number (584527549320).

Almost surely, 2^{23231223021000} is an apocalyptic number.

23231223021000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23231223021000 is an abundant number, since it is smaller than the sum of its proper divisors (51588303291960).

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

23231223021000 is a wasteful number, since it uses less digits than its factorization.

23231223021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249798152 (or 249798138 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23231223021000 its reverse (12032213232), we get a palindrome (23243255234232).

The spelling of 23231223021000 in words is "twenty-three trillion, two hundred thirty-one billion, two hundred twenty-three million, twenty-one thousand".