12420531430 has 8 divisors (see below), whose sum is σ = 22356956592. Its totient is φ = 4968212568.

The previous prime is 12420531419. The next prime is 12420531509. The reversal of 12420531430 is 3413502421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12420531395 and 12420531404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621026562 + ... + 621026581.

It is an arithmetic number, because the mean of its divisors is an integer number (2794619574).

Almost surely, 2^12420531430 is an apocalyptic number.

12420531430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12420531430 is a deficient number, since it is larger than the sum of its proper divisors (9936425162).

12420531430 is a wasteful number, since it uses less digits than its factorization.

12420531430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242053150.

The product of its (nonzero) digits is 2880, while the sum is 25.

The spelling of 12420531430 in words is "twelve billion, four hundred twenty million, five hundred thirty-one thousand, four hundred thirty".