2110370561 has 4 divisors (see below), whose sum is σ = 2272706772. Its totient is φ = 1948034352.

The previous prime is 2110370551. The next prime is 2110370567. The reversal of 2110370561 is 1650730112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1005207025 + 1105163536 = 31705^2 + 33244^2 .

It is a cyclic number.

It is not a de Polignac number, because 2110370561 - 2²⁶ = 2043261697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2110370561.

It is not an unprimeable number, because it can be changed into a prime (2110370567) 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, 81168086 + ... + 81168111.

It is an arithmetic number, because the mean of its divisors is an integer number (568176693).

Almost surely, 2^2110370561 is an apocalyptic number.

It is an amenable number.

2110370561 is a deficient number, since it is larger than the sum of its proper divisors (162336211).

2110370561 is a wasteful number, since it uses less digits than its factorization.

2110370561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162336210.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 2110370561 is about 45938.7696940177. The cubic root of 2110370561 is about 1282.6836924649.

The spelling of 2110370561 in words is "two billion, one hundred ten million, three hundred seventy thousand, five hundred sixty-one".