2123791053 has 4 divisors (see below), whose sum is σ = 2831721408. Its totient is φ = 1415860700.

The previous prime is 2123791031. The next prime is 2123791057. The reversal of 2123791053 is 3501973212.

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 2123791053 - 2¹³ = 2123782861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123791057) 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, 353965173 + ... + 353965178.

It is an arithmetic number, because the mean of its divisors is an integer number (707930352).

Almost surely, 2^2123791053 is an apocalyptic number.

It is an amenable number.

2123791053 is a deficient number, since it is larger than the sum of its proper divisors (707930355).

2123791053 is an equidigital number, since it uses as much as digits as its factorization.

2123791053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707930354.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 2123791053 is about 46084.6075495930. The cubic root of 2123791053 is about 1285.3969417721.

The spelling of 2123791053 in words is "two billion, one hundred twenty-three million, seven hundred ninety-one thousand, fifty-three".