12431113020 has 36 divisors (see below), whose sum is σ = 37707710040. Its totient is φ = 3314963424.

The previous prime is 12431112983. The next prime is 12431113043. The reversal of 12431113020 is 2031113421.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 12431112984 and 12431113002.

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, 34530690 + ... + 34531049.

It is an arithmetic number, because the mean of its divisors is an integer number (1047436390).

Almost surely, 2^12431113020 is an apocalyptic number.

12431113020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12431113020 is an abundant number, since it is smaller than the sum of its proper divisors (25276597020).

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

12431113020 is a wasteful number, since it uses less digits than its factorization.

12431113020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69061754 (or 69061749 counting only the distinct ones).

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

Adding to 12431113020 its reverse (2031113421), we get a palindrome (14462226441).

The spelling of 12431113020 in words is "twelve billion, four hundred thirty-one million, one hundred thirteen thousand, twenty".