2011653023 has 16 divisors (see below), whose sum is σ = 2097100800. Its totient is φ = 1927581600.

The previous prime is 2011653013. The next prime is 2011653029. The reversal of 2011653023 is 3203561102.

It is a cyclic number.

It is not a de Polignac number, because 2011653023 - 2⁸ = 2011652767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2011653023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011653029) 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, 2267486 + ... + 2268372.

It is an arithmetic number, because the mean of its divisors is an integer number (131068800).

Almost surely, 2^2011653023 is an apocalyptic number.

2011653023 is a deficient number, since it is larger than the sum of its proper divisors (85447777).

2011653023 is a wasteful number, since it uses less digits than its factorization.

2011653023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2011653023 is about 44851.4550823047. The cubic root of 2011653023 is about 1262.3632942590.

The spelling of 2011653023 in words is "two billion, eleven million, six hundred fifty-three thousand, twenty-three".