320023002003031 has 16 divisors (see below), whose sum is σ = 333278036280000. Its totient is φ = 306917264279808.

The previous prime is 320023002002993. The next prime is 320023002003037. The reversal of 320023002003031 is 130300200320023.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320023002003031 is a prime.

It is a super-2 number, since 2×320023002003031² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320023002003037) 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, 1935811 + ... + 25373083.

It is an arithmetic number, because the mean of its divisors is an integer number (20829877267500).

Almost surely, 2^{320023002003031} is an apocalyptic number.

320023002003031 is a deficient number, since it is larger than the sum of its proper divisors (13255034276969).

320023002003031 is a wasteful number, since it uses less digits than its factorization.

320023002003031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23440458.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 320023002003031 its reverse (130300200320023), we get a palindrome (450323202323054).

The spelling of 320023002003031 in words is "three hundred twenty trillion, twenty-three billion, two million, three thousand, thirty-one".