12400010431 has 8 divisors (see below), whose sum is σ = 12450554928. Its totient is φ = 12349512000.

The previous prime is 12400010411. The next prime is 12400010437. The reversal of 12400010431 is 13401000421.

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 12400010431 - 2³¹ = 10252526783 is a prime.

It is a super-2 number, since 2×12400010431² (a number of 21 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 (12400010437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591316 + ... + 611926.

It is an arithmetic number, because the mean of its divisors is an integer number (1556319366).

Almost surely, 2^12400010431 is an apocalyptic number.

12400010431 is a deficient number, since it is larger than the sum of its proper divisors (50544497).

12400010431 is a wasteful number, since it uses less digits than its factorization.

12400010431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23033.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12400010431 its reverse (13401000421), we get a palindrome (25801010852).

It can be divided in two parts, 124000 and 10431, that added together give a palindrome (134431).

The spelling of 12400010431 in words is "twelve billion, four hundred million, ten thousand, four hundred thirty-one".