400451001252103 has 2 divisors, whose sum is σ = 400451001252104. Its totient is φ = 400451001252102.

The previous prime is 400451001252077. The next prime is 400451001252143. The reversal of 400451001252103 is 301252100154004.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400451001252103 is a prime.

It is a super-2 number, since 2×400451001252103² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400451001252143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200225500626051 + 200225500626052.

It is an arithmetic number, because the mean of its divisors is an integer number (200225500626052).

Almost surely, 2^{400451001252103} is an apocalyptic number.

400451001252103 is a deficient number, since it is larger than the sum of its proper divisors (1).

400451001252103 is an equidigital number, since it uses as much as digits as its factorization.

400451001252103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 400451001252103 in words is "four hundred trillion, four hundred fifty-one billion, one million, two hundred fifty-two thousand, one hundred three".