320253343031 has 16 divisors (see below), whose sum is σ = 350363870208. Its totient is φ = 291413808000.

The previous prime is 320253343019. The next prime is 320253343037. The reversal of 320253343031 is 130343352023.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320253343031 is a prime.

It is a super-2 number, since 2×320253343031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320253342985 and 320253343003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320253343037) 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, 264776 + ... + 842978.

It is an arithmetic number, because the mean of its divisors is an integer number (21897741888).

Almost surely, 2^320253343031 is an apocalyptic number.

320253343031 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

320253343031 is a deficient number, since it is larger than the sum of its proper divisors (30110527177).

320253343031 is a wasteful number, since it uses less digits than its factorization.

320253343031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579302.

The product of its (nonzero) digits is 19440, while the sum is 29.

Adding to 320253343031 its reverse (130343352023), we get a palindrome (450596695054).

The spelling of 320253343031 in words is "three hundred twenty billion, two hundred fifty-three million, three hundred forty-three thousand, thirty-one".