2101630061 has 4 divisors (see below), whose sum is σ = 2105092992. Its totient is φ = 2098167132.

The previous prime is 2101629997. The next prime is 2101630079. The reversal of 2101630061 is 1600361012.

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 2101630061 - 2⁶ = 2101629997 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 (2101630961) 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, 1730555 + ... + 1731768.

It is an arithmetic number, because the mean of its divisors is an integer number (526273248).

Almost surely, 2^2101630061 is an apocalyptic number.

It is an amenable number.

2101630061 is a deficient number, since it is larger than the sum of its proper divisors (3462931).

2101630061 is an equidigital number, since it uses as much as digits as its factorization.

2101630061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3462930.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2101630061 is about 45843.5389231678. The cubic root of 2101630061 is about 1280.9104161443.

Adding to 2101630061 its reverse (1600361012), we get a palindrome (3701991073).

The spelling of 2101630061 in words is "two billion, one hundred one million, six hundred thirty thousand, sixty-one".