2123444031 has 4 divisors (see below), whose sum is σ = 2831258712. Its totient is φ = 1415629352.

The previous prime is 2123443999. The next prime is 2123444087. The reversal of 2123444031 is 1304443212.

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 2123444031 - 2⁵ = 2123443999 is a prime.

It is a super-2 number, since 2×2123444031² = 9018029105579057922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2123443992 and 2123444010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123444131) 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, 353907336 + ... + 353907341.

It is an arithmetic number, because the mean of its divisors is an integer number (707814678).

Almost surely, 2^2123444031 is an apocalyptic number.

2123444031 is a deficient number, since it is larger than the sum of its proper divisors (707814681).

2123444031 is an equidigital number, since it uses as much as digits as its factorization.

2123444031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707814680.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2123444031 is about 46080.8423425614. The cubic root of 2123444031 is about 1285.3269277730.

Adding to 2123444031 its reverse (1304443212), we get a palindrome (3427887243).

The spelling of 2123444031 in words is "two billion, one hundred twenty-three million, four hundred forty-four thousand, thirty-one".