12400320441 has 16 divisors (see below), whose sum is σ = 17261467776. Its totient is φ = 7903395456.

The previous prime is 12400320431. The next prime is 12400320451. The reversal of 12400320441 is 14402300421.

It is an interprime number because it is at equal distance from previous prime (12400320431) and next prime (12400320451).

It is not a de Polignac number, because 12400320441 - 2²³ = 12391931833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12400320431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92431 + ... + 182603.

It is an arithmetic number, because the mean of its divisors is an integer number (1078841736).

Almost surely, 2^12400320441 is an apocalyptic number.

It is an amenable number.

12400320441 is a deficient number, since it is larger than the sum of its proper divisors (4861147335).

12400320441 is a wasteful number, since it uses less digits than its factorization.

12400320441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92192.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12400320441 its reverse (14402300421), we get a palindrome (26802620862).

The spelling of 12400320441 in words is "twelve billion, four hundred million, three hundred twenty thousand, four hundred forty-one".