2102353613 has 4 divisors (see below), whose sum is σ = 2102456220. Its totient is φ = 2102251008.

The previous prime is 2102353543. The next prime is 2102353633. The reversal of 2102353613 is 3163532012.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1635231844 + 467121769 = 40438^2 + 21613^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102353613 - 2¹⁰ = 2102352589 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 (2102353633) 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, 8870 + ... + 65447.

It is an arithmetic number, because the mean of its divisors is an integer number (525614055).

Almost surely, 2^2102353613 is an apocalyptic number.

It is an amenable number.

2102353613 is a deficient number, since it is larger than the sum of its proper divisors (102607).

2102353613 is an equidigital number, since it uses as much as digits as its factorization.

2102353613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102606.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 2102353613 is about 45851.4297814147. The cubic root of 2102353613 is about 1281.0573971267.

Adding to 2102353613 its reverse (3163532012), we get a palindrome (5265885625).

The spelling of 2102353613 in words is "two billion, one hundred two million, three hundred fifty-three thousand, six hundred thirteen".