121133323213 has 12 divisors (see below), whose sum is σ = 140915864892. Its totient is φ = 103824383040.

The previous prime is 121133323187. The next prime is 121133323261. The reversal of 121133323213 is 312323331121.

It can be written as a sum of positive squares in 2 ways, for example, as 28758054724 + 92375268489 = 169582^2 + 303933^2 .

It is not a de Polignac number, because 121133323213 - 2⁹ = 121133322701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121133323513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2316193 + ... + 2367913.

It is an arithmetic number, because the mean of its divisors is an integer number (11742988741).

Almost surely, 2^121133323213 is an apocalyptic number.

It is an amenable number.

121133323213 is a deficient number, since it is larger than the sum of its proper divisors (19782541679).

121133323213 is an equidigital number, since it uses as much as digits as its factorization.

121133323213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99532 (or 99525 counting only the distinct ones).

The product of its digits is 1944, while the sum is 25.

Adding to 121133323213 its reverse (312323331121), we get a palindrome (433456654334).

The spelling of 121133323213 in words is "one hundred twenty-one billion, one hundred thirty-three million, three hundred twenty-three thousand, two hundred thirteen".