400124231413 has 2 divisors, whose sum is σ = 400124231414. Its totient is φ = 400124231412.

The previous prime is 400124231363. The next prime is 400124231443. The reversal of 400124231413 is 314132421004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 370628916849 + 29495314564 = 608793^2 + 171742^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400124231413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400124231443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200062115706 + 200062115707.

It is an arithmetic number, because the mean of its divisors is an integer number (200062115707).

Almost surely, 2^400124231413 is an apocalyptic number.

It is an amenable number.

400124231413 is a deficient number, since it is larger than the sum of its proper divisors (1).

400124231413 is an equidigital number, since it uses as much as digits as its factorization.

400124231413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 400124231413 its reverse (314132421004), we get a palindrome (714256652417).

The spelling of 400124231413 in words is "four hundred billion, one hundred twenty-four million, two hundred thirty-one thousand, four hundred thirteen".