2031123424 has 72 divisors (see below), whose sum is σ = 4489267104. Its totient is φ = 903513600.

The previous prime is 2031123401. The next prime is 2031123443. The reversal of 2031123424 is 4243211302.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2031123395 and 2031123404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176404 + ... + 187564.

It is an arithmetic number, because the mean of its divisors is an integer number (62350932).

Almost surely, 2^2031123424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2031123424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2244633552).

2031123424 is an abundant number, since it is smaller than the sum of its proper divisors (2458143680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2031123424 is a wasteful number, since it uses less digits than its factorization.

2031123424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11240 (or 11221 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2031123424 is about 45067.9866867824. The cubic root of 2031123424 is about 1266.4229482463.

Adding to 2031123424 its reverse (4243211302), we get a palindrome (6274334726).

The spelling of 2031123424 in words is "two billion, thirty-one million, one hundred twenty-three thousand, four hundred twenty-four".