121313213033 has 4 divisors (see below), whose sum is σ = 121318750020. Its totient is φ = 121307676048.

The previous prime is 121313213023. The next prime is 121313213051. The reversal of 121313213033 is 330312313121.

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 88359346009 + 32953867024 = 297253^2 + 181532^2 .

It is a cyclic number.

It is not a de Polignac number, because 121313213033 - 2⁸ = 121313212777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121313213023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2735498 + ... + 2779491.

It is an arithmetic number, because the mean of its divisors is an integer number (30329687505).

Almost surely, 2^121313213033 is an apocalyptic number.

It is an amenable number.

121313213033 is a deficient number, since it is larger than the sum of its proper divisors (5536987).

121313213033 is an equidigital number, since it uses as much as digits as its factorization.

121313213033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5536986.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 121313213033 its reverse (330312313121), we get a palindrome (451625526154).

The spelling of 121313213033 in words is "one hundred twenty-one billion, three hundred thirteen million, two hundred thirteen thousand, thirty-three".