2142652111 has 4 divisors (see below), whose sum is σ = 2145995424. Its totient is φ = 2139308800.

The previous prime is 2142652093. The next prime is 2142652123. The reversal of 2142652111 is 1112562412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2142652111 - 2²¹ = 2140554959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142652181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1670695 + ... + 1671976.

It is an arithmetic number, because the mean of its divisors is an integer number (536498856).

Almost surely, 2^2142652111 is an apocalyptic number.

2142652111 is a deficient number, since it is larger than the sum of its proper divisors (3343313).

2142652111 is an equidigital number, since it uses as much as digits as its factorization.

2142652111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343312.

The product of its digits is 960, while the sum is 25.

The square root of 2142652111 is about 46288.7903384826. The cubic root of 2142652111 is about 1289.1908695133.

It can be divided in two parts, 21426 and 52111, that added together give a palindrome (73537).

The spelling of 2142652111 in words is "two billion, one hundred forty-two million, six hundred fifty-two thousand, one hundred eleven".