400011042451 has 2 divisors, whose sum is σ = 400011042452. Its totient is φ = 400011042450.

The previous prime is 400011042439. The next prime is 400011042461. The reversal of 400011042451 is 154240110004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400011042451 - 2⁹ = 400011041939 is a prime.

It is not a weakly prime, because it can be changed into another prime (400011042461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200005521225 + 200005521226.

It is an arithmetic number, because the mean of its divisors is an integer number (200005521226).

Almost surely, 2^400011042451 is an apocalyptic number.

400011042451 is a deficient number, since it is larger than the sum of its proper divisors (1).

400011042451 is an equidigital number, since it uses as much as digits as its factorization.

400011042451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 400011042451 its reverse (154240110004), we get a palindrome (554251152455).

The spelling of 400011042451 in words is "four hundred billion, eleven million, forty-two thousand, four hundred fifty-one".