2121323463 has 24 divisors (see below), whose sum is σ = 3567945888. Its totient is φ = 1189311552.

The previous prime is 2121323453. The next prime is 2121323467. The reversal of 2121323463 is 3643231212.

It is not a de Polignac number, because 2121323463 - 2⁵ = 2121323431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121323467) 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 23 ways as a sum of consecutive naturals, for example, 314320 + ... + 320997.

It is an arithmetic number, because the mean of its divisors is an integer number (148664412).

Almost surely, 2^2121323463 is an apocalyptic number.

2121323463 is a deficient number, since it is larger than the sum of its proper divisors (1446622425).

2121323463 is a wasteful number, since it uses less digits than its factorization.

2121323463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635383 (or 635380 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 2121323463 is about 46057.8273803704. The cubic root of 2121323463 is about 1284.8989232472.

Adding to 2121323463 its reverse (3643231212), we get a palindrome (5764554675).

The spelling of 2121323463 in words is "two billion, one hundred twenty-one million, three hundred twenty-three thousand, four hundred sixty-three".