836230121 has 2 divisors, whose sum is σ = 836230122. Its totient is φ = 836230120.

The previous prime is 836230099. The next prime is 836230123. The reversal of 836230121 is 121032638.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 774842896 + 61387225 = 27836^2 + 7835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-836230121 is a prime.

Together with 836230123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (836230123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 418115060 + 418115061.

It is an arithmetic number, because the mean of its divisors is an integer number (418115061).

Almost surely, 2^836230121 is an apocalyptic number.

It is an amenable number.

836230121 is a deficient number, since it is larger than the sum of its proper divisors (1).

836230121 is an equidigital number, since it uses as much as digits as its factorization.

836230121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 836230121 is about 28917.6437663929. The cubic root of 836230121 is about 942.1251604859.

Adding to 836230121 its reverse (121032638), we get a palindrome (957262759).

It can be divided in two parts, 8362 and 30121, that added together give a palindrome (38483).

The spelling of 836230121 in words is "eight hundred thirty-six million, two hundred thirty thousand, one hundred twenty-one".