2163101231 has 4 divisors (see below), whose sum is σ = 2195386392. Its totient is φ = 2130816072.

The previous prime is 2163101209. The next prime is 2163101273. The reversal of 2163101231 is 1321013612.

2163101231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2163101231 - 2¹⁰ = 2163100207 is a prime.

It is a super-2 number, since 2×2163101231² = 9358013871107430722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163101201) 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, 16142480 + ... + 16142613.

It is an arithmetic number, because the mean of its divisors is an integer number (548846598).

Almost surely, 2^2163101231 is an apocalyptic number.

2163101231 is a deficient number, since it is larger than the sum of its proper divisors (32285161).

2163101231 is an equidigital number, since it uses as much as digits as its factorization.

2163101231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32285160.

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

The square root of 2163101231 is about 46509.1521208461. The cubic root of 2163101231 is about 1293.2791662949.

Adding to 2163101231 its reverse (1321013612), we get a palindrome (3484114843).

The spelling of 2163101231 in words is "two billion, one hundred sixty-three million, one hundred one thousand, two hundred thirty-one".