400330131001 has 4 divisors (see below), whose sum is σ = 400402177252. Its totient is φ = 400258084752.

The previous prime is 400330130969. The next prime is 400330131007. The reversal of 400330131001 is 100131033004.

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 279000522025 + 121329608976 = 528205^2 + 348324^2 .

It is a cyclic number.

It is not a de Polignac number, because 400330131001 - 2⁵ = 400330130969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400330131007) 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, 36014790 + ... + 36025903.

It is an arithmetic number, because the mean of its divisors is an integer number (100100544313).

Almost surely, 2^400330131001 is an apocalyptic number.

It is an amenable number.

400330131001 is a deficient number, since it is larger than the sum of its proper divisors (72046251).

400330131001 is an equidigital number, since it uses as much as digits as its factorization.

400330131001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72046250.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 400330131001 its reverse (100131033004), we get a palindrome (500461164005).

The spelling of 400330131001 in words is "four hundred billion, three hundred thirty million, one hundred thirty-one thousand, one".