2120313313031 has 4 divisors (see below), whose sum is σ = 2130968154000. Its totient is φ = 2109658472064.

The previous prime is 2120313313003. The next prime is 2120313313043. The reversal of 2120313313031 is 1303133130212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120313313031 is a prime.

It is a super-2 number, since 2×2120313313031² (a number of 25 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 = 2120313312988 and 2120313313006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120313313081) 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, 5327420186 + ... + 5327420583.

It is an arithmetic number, because the mean of its divisors is an integer number (532742038500).

Almost surely, 2^{2120313313031} is an apocalyptic number.

2120313313031 is a deficient number, since it is larger than the sum of its proper divisors (10654840969).

2120313313031 is a wasteful number, since it uses less digits than its factorization.

2120313313031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10654840968.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 2120313313031 its reverse (1303133130212), we get a palindrome (3423446443243).

The spelling of 2120313313031 in words is "two trillion, one hundred twenty billion, three hundred thirteen million, three hundred thirteen thousand, thirty-one".