423121131312 has 80 divisors (see below), whose sum is σ = 1230897884160. Its totient is φ = 124082438400.

The previous prime is 423121131311. The next prime is 423121131317. The reversal of 423121131312 is 213131121324.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (423121131311) 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, 12908887 + ... + 12941622.

It is an arithmetic number, because the mean of its divisors is an integer number (15386223552).

Almost surely, 2^423121131312 is an apocalyptic number.

It is an amenable number.

423121131312 is an abundant number, since it is smaller than the sum of its proper divisors (807776752848).

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

423121131312 is a wasteful number, since it uses less digits than its factorization.

423121131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25850562 (or 25850556 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

Adding to 423121131312 its reverse (213131121324), we get a palindrome (636252252636).

The spelling of 423121131312 in words is "four hundred twenty-three billion, one hundred twenty-one million, one hundred thirty-one thousand, three hundred twelve".