400124231443 has 2 divisors, whose sum is σ = 400124231444. Its totient is φ = 400124231442.

The previous prime is 400124231413. The next prime is 400124231471. The reversal of 400124231443 is 344132421004.

It is an a-pointer prime, because the next prime (400124231471) can be obtained adding 400124231443 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400124231443 - 2³⁷ = 262685277971 is a prime.

It is not a weakly prime, because it can be changed into another prime (400124231413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200062115721 + 200062115722.

It is an arithmetic number, because the mean of its divisors is an integer number (200062115722).

Almost surely, 2^400124231443 is an apocalyptic number.

400124231443 is a deficient number, since it is larger than the sum of its proper divisors (1).

400124231443 is an equidigital number, since it uses as much as digits as its factorization.

400124231443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 400124231443 its reverse (344132421004), we get a palindrome (744256652447).

The spelling of 400124231443 in words is "four hundred billion, one hundred twenty-four million, two hundred thirty-one thousand, four hundred forty-three".