121210131233 has 4 divisors (see below), whose sum is σ = 121235810628. Its totient is φ = 121184451840.

The previous prime is 121210131197. The next prime is 121210131253. The reversal of 121210131233 is 332131012121.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 72354544144 + 48855587089 = 268988^2 + 221033^2 .

It is a cyclic number.

It is not a de Polignac number, because 121210131233 - 2¹⁴ = 121210114849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121210131253) 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 3 ways as a sum of consecutive naturals, for example, 12832616 + ... + 12842057.

It is an arithmetic number, because the mean of its divisors is an integer number (30308952657).

Almost surely, 2^121210131233 is an apocalyptic number.

It is an amenable number.

121210131233 is a deficient number, since it is larger than the sum of its proper divisors (25679395).

121210131233 is an equidigital number, since it uses as much as digits as its factorization.

121210131233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25679394.

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

Adding to 121210131233 its reverse (332131012121), we get a palindrome (453341143354).

The spelling of 121210131233 in words is "one hundred twenty-one billion, two hundred ten million, one hundred thirty-one thousand, two hundred thirty-three".