2130630225161 has 4 divisors (see below), whose sum is σ = 2130637495812. Its totient is φ = 2130622954512.

The previous prime is 2130630225151. The next prime is 2130630225239. The reversal of 2130630225161 is 1615220360312.

It is a happy number.

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 512534287225 + 1618095937936 = 715915^2 + 1272044^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2130630225161 is a prime.

It is a super-2 number, since 2×2130630225161² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2130630225151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3176450 + ... + 3788283.

It is an arithmetic number, because the mean of its divisors is an integer number (532659373953).

Almost surely, 2^{2130630225161} is an apocalyptic number.

It is an amenable number.

2130630225161 is a deficient number, since it is larger than the sum of its proper divisors (7270651).

2130630225161 is an equidigital number, since it uses as much as digits as its factorization.

2130630225161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7270650.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 2130630225161 its reverse (1615220360312), we get a palindrome (3745850585473).

The spelling of 2130630225161 in words is "two trillion, one hundred thirty billion, six hundred thirty million, two hundred twenty-five thousand, one hundred sixty-one".