2112123015 has 12 divisors (see below), whose sum is σ = 3661013304. Its totient is φ = 1126465584.

The previous prime is 2112123001. The next prime is 2112123029. The reversal of 2112123015 is 5103212112.

It is an interprime number because it is at equal distance from previous prime (2112123001) and next prime (2112123029).

It is not a de Polignac number, because 2112123015 - 2⁶ = 2112122951 is a prime.

It is a super-2 number, since 2×2112123015² = 8922127260985380450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 23467989 + ... + 23468078.

It is an arithmetic number, because the mean of its divisors is an integer number (305084442).

Almost surely, 2^2112123015 is an apocalyptic number.

2112123015 is a deficient number, since it is larger than the sum of its proper divisors (1548890289).

2112123015 is a wasteful number, since it uses less digits than its factorization.

2112123015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46936078 (or 46936075 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 2112123015 is about 45957.8395379940. The cubic root of 2112123015 is about 1283.0386415422.

Adding to 2112123015 its reverse (5103212112), we get a palindrome (7215335127).

The spelling of 2112123015 in words is "two billion, one hundred twelve million, one hundred twenty-three thousand, fifteen".