402000320231 has 8 divisors (see below), whose sum is σ = 402941800800. Its totient is φ = 401059665280.

The previous prime is 402000320213. The next prime is 402000320233. The reversal of 402000320231 is 132023000204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402000320231 - 2⁶ = 402000320167 is a prime.

It is a super-2 number, since 2×402000320231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402000320233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773990 + ... + 1184508.

It is an arithmetic number, because the mean of its divisors is an integer number (50367725100).

Almost surely, 2^402000320231 is an apocalyptic number.

402000320231 is a deficient number, since it is larger than the sum of its proper divisors (941480569).

402000320231 is a wasteful number, since it uses less digits than its factorization.

402000320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412809.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 402000320231 its reverse (132023000204), we get a palindrome (534023320435).

The spelling of 402000320231 in words is "four hundred two billion, three hundred twenty thousand, two hundred thirty-one".