2122311031 has 4 divisors (see below), whose sum is σ = 2195494200. Its totient is φ = 2049127864.

The previous prime is 2122311013. The next prime is 2122311043. The reversal of 2122311031 is 1301132212.

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

It is a cyclic number.

It is not a de Polignac number, because 2122311031 - 2¹³ = 2122302839 is a prime.

It is a super-2 number, since 2×2122311031² = 9008408224608565922, 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 = 2122310996 and 2122311014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122311011) 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, 36591541 + ... + 36591598.

It is an arithmetic number, because the mean of its divisors is an integer number (548873550).

Almost surely, 2^2122311031 is an apocalyptic number.

2122311031 is a deficient number, since it is larger than the sum of its proper divisors (73183169).

2122311031 is an equidigital number, since it uses as much as digits as its factorization.

2122311031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73183168.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2122311031 is about 46068.5470901786. The cubic root of 2122311031 is about 1285.0982843567.

Adding to 2122311031 its reverse (1301132212), we get a palindrome (3423443243).

The spelling of 2122311031 in words is "two billion, one hundred twenty-two million, three hundred eleven thousand, thirty-one".