320001312031031 has 16 divisors (see below), whose sum is σ = 323093302179840. Its totient is φ = 316924663620960.

The previous prime is 320001312031013. The next prime is 320001312031069. The reversal of 320001312031031 is 130130213100023.

It is a cyclic number.

It is not a de Polignac number, because 320001312031031 - 2³⁴ = 319984132161847 is a prime.

It is a super-2 number, since 2×320001312031031² (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 = 320001312030994 and 320001312031012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320001315031031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133032365 + ... + 135416441.

It is an arithmetic number, because the mean of its divisors is an integer number (20193331386240).

Almost surely, 2^{320001312031031} is an apocalyptic number.

320001312031031 is a deficient number, since it is larger than the sum of its proper divisors (3091990148809).

320001312031031 is a wasteful number, since it uses less digits than its factorization.

320001312031031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387294.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 320001312031031 its reverse (130130213100023), we get a palindrome (450131525131054).

The spelling of 320001312031031 in words is "three hundred twenty trillion, one billion, three hundred twelve million, thirty-one thousand, thirty-one".