2112145023 has 16 divisors (see below), whose sum is σ = 2915002080. Its totient is φ = 1358749056.

The previous prime is 2112145019. The next prime is 2112145033. The reversal of 2112145023 is 3205412112.

It is not a de Polignac number, because 2112145023 - 2² = 2112145019 is a prime.

It is a super-2 number, since 2×2112145023² = 8922313196367341058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112145033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167661 + ... + 179817.

It is an arithmetic number, because the mean of its divisors is an integer number (182187630).

Almost surely, 2^2112145023 is an apocalyptic number.

2112145023 is a deficient number, since it is larger than the sum of its proper divisors (802857057).

2112145023 is a wasteful number, since it uses less digits than its factorization.

2112145023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14186.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2112145023 is about 45958.0789742130. The cubic root of 2112145023 is about 1283.0430978825.

Adding to 2112145023 its reverse (3205412112), we get a palindrome (5317557135).

The spelling of 2112145023 in words is "two billion, one hundred twelve million, one hundred forty-five thousand, twenty-three".