399112321132001 has 4 divisors (see below), whose sum is σ = 405069221447472. Its totient is φ = 393155420816532.

The previous prime is 399112321131919. The next prime is 399112321132139. The reversal of 399112321132001 is 100231123211993.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 399112321132001 - 2¹⁰ = 399112321130977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (399112321135001) 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, 2978450157635 + ... + 2978450157768.

It is an arithmetic number, because the mean of its divisors is an integer number (101267305361868).

Almost surely, 2^{399112321132001} is an apocalyptic number.

It is an amenable number.

399112321132001 is a deficient number, since it is larger than the sum of its proper divisors (5956900315471).

399112321132001 is an equidigital number, since it uses as much as digits as its factorization.

399112321132001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5956900315470.

The product of its (nonzero) digits is 17496, while the sum is 38.

Adding to 399112321132001 its reverse (100231123211993), we get a palindrome (499343444343994).

The spelling of 399112321132001 in words is "three hundred ninety-nine trillion, one hundred twelve billion, three hundred twenty-one million, one hundred thirty-two thousand, one".