2312161263 has 24 divisors (see below), whose sum is σ = 3398063760. Its totient is φ = 1514597760.

The previous prime is 2312161249. The next prime is 2312161303. The reversal of 2312161263 is 3621612132.

2312161263 is a `hidden beast` number, since 23 + 1 + 21 + 612 + 6 + 3 = 666.

It is not a de Polignac number, because 2312161263 - 2⁵ = 2312161231 is a prime.

It is a super-2 number, since 2×2312161263² = 10692179412235510338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312165263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 785248 + ... + 788186.

It is an arithmetic number, because the mean of its divisors is an integer number (141585990).

Almost surely, 2^2312161263 is an apocalyptic number.

2312161263 is a deficient number, since it is larger than the sum of its proper divisors (1085902497).

2312161263 is a wasteful number, since it uses less digits than its factorization.

2312161263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4439 (or 4436 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 2312161263 is about 48084.9380055751. The cubic root of 2312161263 is about 1322.3285465914.

Adding to 2312161263 its reverse (3621612132), we get a palindrome (5933773395).

The spelling of 2312161263 in words is "two billion, three hundred twelve million, one hundred sixty-one thousand, two hundred sixty-three".