12431201420 has 48 divisors (see below), whose sum is σ = 28839283200. Its totient is φ = 4463209920.

The previous prime is 12431201389. The next prime is 12431201479. The reversal of 12431201420 is 2410213421.

It is a super-2 number, since 2×12431201420² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12431201392 and 12431201401.

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, 340250 + ... + 375009.

It is an arithmetic number, because the mean of its divisors is an integer number (600818400).

Almost surely, 2^12431201420 is an apocalyptic number.

12431201420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12431201420 is an abundant number, since it is smaller than the sum of its proper divisors (16408081780).

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

12431201420 is a wasteful number, since it uses less digits than its factorization.

12431201420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715358 (or 715356 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12431201420 its reverse (2410213421), we get a palindrome (14841414841).

The spelling of 12431201420 in words is "twelve billion, four hundred thirty-one million, two hundred one thousand, four hundred twenty".