2101140253 has 4 divisors (see below), whose sum is σ = 2114030848. Its totient is φ = 2088249660.

The previous prime is 2101140203. The next prime is 2101140271. The reversal of 2101140253 is 3520411012.

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 2101140253 - 2²¹ = 2099043101 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 2101140253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101140203) 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, 6445053 + ... + 6445378.

It is an arithmetic number, because the mean of its divisors is an integer number (528507712).

Almost surely, 2^2101140253 is an apocalyptic number.

It is an amenable number.

2101140253 is a deficient number, since it is larger than the sum of its proper divisors (12890595).

2101140253 is a wasteful number, since it uses less digits than its factorization.

2101140253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12890594.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2101140253 is about 45838.1964413959. The cubic root of 2101140253 is about 1280.8108983259.

Adding to 2101140253 its reverse (3520411012), we get a palindrome (5621551265).

The spelling of 2101140253 in words is "two billion, one hundred one million, one hundred forty thousand, two hundred fifty-three".