2023313131 has 4 divisors (see below), whose sum is σ = 2312357872. Its totient is φ = 1734268392.

The previous prime is 2023313129. The next prime is 2023313147. The reversal of 2023313131 is 1313133202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1313133202 = 2 ⋅656566601.

It is a cyclic number.

It is not a de Polignac number, because 2023313131 - 2¹ = 2023313129 is a prime.

It is a super-2 number, since 2×2023313131² = 8187592052154046322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2023313099 and 2023313108.

It is not an unprimeable number, because it can be changed into a prime (2023313111) 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, 144522360 + ... + 144522373.

It is an arithmetic number, because the mean of its divisors is an integer number (578089468).

Almost surely, 2^2023313131 is an apocalyptic number.

2023313131 is a deficient number, since it is larger than the sum of its proper divisors (289044741).

2023313131 is an equidigital number, since it uses as much as digits as its factorization.

2023313131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289044740.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2023313131 is about 44981.2531061552. The cubic root of 2023313131 is about 1264.7976014926.

Adding to 2023313131 its reverse (1313133202), we get a palindrome (3336446333).

The spelling of 2023313131 in words is "two billion, twenty-three million, three hundred thirteen thousand, one hundred thirty-one".