2121235463 has 2 divisors, whose sum is σ = 2121235464. Its totient is φ = 2121235462.

The previous prime is 2121235433. The next prime is 2121235489. The reversal of 2121235463 is 3645321212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2121235463 - 2¹⁰ = 2121234439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121235433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060617731 + 1060617732.

It is an arithmetic number, because the mean of its divisors is an integer number (1060617732).

Almost surely, 2^2121235463 is an apocalyptic number.

2121235463 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121235463 is an equidigital number, since it uses as much as digits as its factorization.

2121235463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 2121235463 is about 46056.8720496735. The cubic root of 2121235463 is about 1284.8811556175.

Adding to 2121235463 its reverse (3645321212), we get a palindrome (5766556675).

The spelling of 2121235463 in words is "two billion, one hundred twenty-one million, two hundred thirty-five thousand, four hundred sixty-three".