2011748123 has 16 divisors (see below), whose sum is σ = 2515628544. Its totient is φ = 1562924160.

The previous prime is 2011748093. The next prime is 2011748147. The reversal of 2011748123 is 3218471102.

It is not a de Polignac number, because 2011748123 - 2¹⁰ = 2011747099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2011748173) 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, 12815 + ... + 64712.

It is an arithmetic number, because the mean of its divisors is an integer number (157226784).

Almost surely, 2^2011748123 is an apocalyptic number.

2011748123 is a deficient number, since it is larger than the sum of its proper divisors (503880421).

2011748123 is a wasteful number, since it uses less digits than its factorization.

2011748123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77882.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 2011748123 is about 44852.5152360489. The cubic root of 2011748123 is about 1262.3831864996.

The spelling of 2011748123 in words is "two billion, eleven million, seven hundred forty-eight thousand, one hundred twenty-three".