56421224012431 has 8 divisors (see below), whose sum is σ = 60097844812320. Its totient is φ = 52784350464768.

The previous prime is 56421224012383. The next prime is 56421224012441. The reversal of 56421224012431 is 13421042212465.

56421224012431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 56421224012431 - 2¹³ = 56421224004239 is a prime.

It is a super-2 number, since 2×56421224012431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56421224012441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9936810126 + ... + 9936815803.

It is an arithmetic number, because the mean of its divisors is an integer number (7512230601540).

Almost surely, 2^{56421224012431} is an apocalyptic number.

56421224012431 is a deficient number, since it is larger than the sum of its proper divisors (3676620799889).

56421224012431 is a wasteful number, since it uses less digits than its factorization.

56421224012431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19873626113.

The product of its (nonzero) digits is 92160, while the sum is 37.

Adding to 56421224012431 its reverse (13421042212465), we get a palindrome (69842266224896).

The spelling of 56421224012431 in words is "fifty-six trillion, four hundred twenty-one billion, two hundred twenty-four million, twelve thousand, four hundred thirty-one".