2112702138 has 24 divisors (see below), whose sum is σ = 4578432768. Its totient is φ = 704093832.

The previous prime is 2112702133. The next prime is 2112702139. The reversal of 2112702138 is 8312072112.

It is not an unprimeable number, because it can be changed into a prime (2112702133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123495 + ... + 139557.

It is an arithmetic number, because the mean of its divisors is an integer number (190768032).

Almost surely, 2^2112702138 is an apocalyptic number.

2112702138 is an abundant number, since it is smaller than the sum of its proper divisors (2465730630).

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

2112702138 is a wasteful number, since it uses less digits than its factorization.

2112702138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23378 (or 23375 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 2112702138 is about 45964.1396960718. The cubic root of 2112702138 is about 1283.1558962793.

The spelling of 2112702138 in words is "two billion, one hundred twelve million, seven hundred two thousand, one hundred thirty-eight".