2112503431 has 2 divisors, whose sum is σ = 2112503432. Its totient is φ = 2112503430.

The previous prime is 2112503423. The next prime is 2112503447. The reversal of 2112503431 is 1343052112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2112503431 - 2³ = 2112503423 is a prime.

It is a super-2 number, since 2×2112503431² = 8925341491973543522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112503531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056251715 + 1056251716.

It is an arithmetic number, because the mean of its divisors is an integer number (1056251716).

Almost surely, 2^2112503431 is an apocalyptic number.

2112503431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112503431 is an equidigital number, since it uses as much as digits as its factorization.

2112503431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2112503431 is about 45961.9781014699. The cubic root of 2112503431 is about 1283.1156665898.

Adding to 2112503431 its reverse (1343052112), we get a palindrome (3455555543).

The spelling of 2112503431 in words is "two billion, one hundred twelve million, five hundred three thousand, four hundred thirty-one".