400232220213 has 16 divisors (see below), whose sum is σ = 612942387200. Its totient is φ = 227554856496.

The previous prime is 400232220181. The next prime is 400232220257. The reversal of 400232220213 is 312022232004.

It is not a de Polignac number, because 400232220213 - 2⁵ = 400232220181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 400232220213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400232220293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47881945 + ... + 47890302.

It is an arithmetic number, because the mean of its divisors is an integer number (38308899200).

Almost surely, 2^400232220213 is an apocalyptic number.

It is an amenable number.

400232220213 is a deficient number, since it is larger than the sum of its proper divisors (212710166987).

400232220213 is a wasteful number, since it uses less digits than its factorization.

400232220213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95772456.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 400232220213 its reverse (312022232004), we get a palindrome (712254452217).

The spelling of 400232220213 in words is "four hundred billion, two hundred thirty-two million, two hundred twenty thousand, two hundred thirteen".