400023130321 has 8 divisors (see below), whose sum is σ = 404860659840. Its totient is φ = 395186028912.

The previous prime is 400023130319. The next prime is 400023130327. The reversal of 400023130321 is 123031320004.

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 400023130321 - 2¹ = 400023130319 is a prime.

It is a super-3 number, since 3×400023130321³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400023130327) 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, 2029195 + ... + 2217583.

It is an arithmetic number, because the mean of its divisors is an integer number (50607582480).

Almost surely, 2^400023130321 is an apocalyptic number.

It is an amenable number.

400023130321 is a deficient number, since it is larger than the sum of its proper divisors (4837529519).

400023130321 is a wasteful number, since it uses less digits than its factorization.

400023130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214055.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 400023130321 its reverse (123031320004), we get a palindrome (523054450325).

The spelling of 400023130321 in words is "four hundred billion, twenty-three million, one hundred thirty thousand, three hundred twenty-one".