400430103401 has 4 divisors (see below), whose sum is σ = 400913132100. Its totient is φ = 399947074704.

The previous prime is 400430103373. The next prime is 400430103427. The reversal of 400430103401 is 104301034004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 178189515625 + 222240587776 = 422125^2 + 471424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400430103401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (400430103481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241513106 + ... + 241514763.

It is an arithmetic number, because the mean of its divisors is an integer number (100228283025).

Almost surely, 2^400430103401 is an apocalyptic number.

It is an amenable number.

400430103401 is a deficient number, since it is larger than the sum of its proper divisors (483028699).

400430103401 is an equidigital number, since it uses as much as digits as its factorization.

400430103401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483028698.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 400430103401 its reverse (104301034004), we get a palindrome (504731137405).

The spelling of 400430103401 in words is "four hundred billion, four hundred thirty million, one hundred three thousand, four hundred one".