320123432002331 has 4 divisors (see below), whose sum is σ = 320126427640392. Its totient is φ = 320120436364272.

The previous prime is 320123432002313. The next prime is 320123432002349. The reversal of 320123432002331 is 133200234321023.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (320123432002313) and next prime (320123432002349).

It is a cyclic number.

It is not a de Polignac number, because 320123432002331 - 2¹⁴ = 320123431985947 is a prime.

It is a super-2 number, since 2×320123432002331² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320123432002294 and 320123432002303.

It is not an unprimeable number, because it can be changed into a prime (320123432002531) 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, 1497658730 + ... + 1497872463.

It is an arithmetic number, because the mean of its divisors is an integer number (80031606910098).

Almost surely, 2^{320123432002331} is an apocalyptic number.

320123432002331 is a deficient number, since it is larger than the sum of its proper divisors (2995638061).

320123432002331 is a wasteful number, since it uses less digits than its factorization.

320123432002331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995638060.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 320123432002331 its reverse (133200234321023), we get a palindrome (453323666323354).

The spelling of 320123432002331 in words is "three hundred twenty trillion, one hundred twenty-three billion, four hundred thirty-two million, two thousand, three hundred thirty-one".