2031111423 has 32 divisors (see below), whose sum is σ = 3362688000. Its totient is φ = 1200945600.

The previous prime is 2031111373. The next prime is 2031111437. The reversal of 2031111423 is 3241111302.

It is not a de Polignac number, because 2031111423 - 2¹⁰ = 2031110399 is a prime.

It is a super-2 number, since 2×2031111423² = 8250827225282169858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2031111396 and 2031111405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031111463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71223 + ... + 95576.

It is an arithmetic number, because the mean of its divisors is an integer number (105084000).

Almost surely, 2^2031111423 is an apocalyptic number.

2031111423 is a deficient number, since it is larger than the sum of its proper divisors (1331576577).

2031111423 is a wasteful number, since it uses less digits than its factorization.

2031111423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166860 (or 166854 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2031111423 is about 45067.8535432962. The cubic root of 2031111423 is about 1266.4204539991.

Adding to 2031111423 its reverse (3241111302), we get a palindrome (5272222725).

The spelling of 2031111423 in words is "two billion, thirty-one million, one hundred eleven thousand, four hundred twenty-three".