2109252681293 has 4 divisors (see below), whose sum is σ = 2109356467680. Its totient is φ = 2109148894908.

The previous prime is 2109252681223. The next prime is 2109252681299. The reversal of 2109252681293 is 3921862529012.

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 2109252681293 - 2²⁰ = 2109251632717 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 (2109252681299) 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, 51862703 + ... + 51903356.

It is an arithmetic number, because the mean of its divisors is an integer number (527339116920).

Almost surely, 2^{2109252681293} is an apocalyptic number.

It is an amenable number.

2109252681293 is a deficient number, since it is larger than the sum of its proper divisors (103786387).

2109252681293 is a wasteful number, since it uses less digits than its factorization.

2109252681293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103786386.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 2109252681293 in words is "two trillion, one hundred nine billion, two hundred fifty-two million, six hundred eighty-one thousand, two hundred ninety-three".