2111742953 has 4 divisors (see below), whose sum is σ = 2203557888. Its totient is φ = 2019928020.

The previous prime is 2111742937. The next prime is 2111742991. The reversal of 2111742953 is 3592471112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2111742953 - 2⁴ = 2111742937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111742923) 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, 45907433 + ... + 45907478.

It is an arithmetic number, because the mean of its divisors is an integer number (550889472).

Almost surely, 2^2111742953 is an apocalyptic number.

2111742953 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2111742953 is a deficient number, since it is larger than the sum of its proper divisors (91814935).

2111742953 is an equidigital number, since it uses as much as digits as its factorization.

2111742953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91814934.

The product of its digits is 15120, while the sum is 35.

The square root of 2111742953 is about 45953.7044535041. The cubic root of 2111742953 is about 1282.9616789347.

The spelling of 2111742953 in words is "two billion, one hundred eleven million, seven hundred forty-two thousand, nine hundred fifty-three".