2120323031 has 6 divisors (see below), whose sum is σ = 2237792832. Its totient is φ = 2008726740.

The previous prime is 2120323019. The next prime is 2120323043. The reversal of 2120323031 is 1303230212.

It is an interprime number because it is at equal distance from previous prime (2120323019) and next prime (2120323043).

It is not a de Polignac number, because 2120323031 - 2¹⁰ = 2120322007 is a prime.

It is a super-2 number, since 2×2120323031² = 8991539511578053922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120323531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2936375 + ... + 2937096.

It is an arithmetic number, because the mean of its divisors is an integer number (372965472).

Almost surely, 2^2120323031 is an apocalyptic number.

2120323031 is a deficient number, since it is larger than the sum of its proper divisors (117469801).

2120323031 is an equidigital number, since it uses as much as digits as its factorization.

2120323031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5873509 (or 5873490 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2120323031 is about 46046.9654917672. The cubic root of 2120323031 is about 1284.6969021738.

Adding to 2120323031 its reverse (1303230212), we get a palindrome (3423553243).

The spelling of 2120323031 in words is "two billion, one hundred twenty million, three hundred twenty-three thousand, thirty-one".