121055510233 has 6 divisors (see below), whose sum is σ = 140819675226. Its totient is φ = 103761865872.

The previous prime is 121055510197. The next prime is 121055510299. The reversal of 121055510233 is 332015550121.

It can be written as a sum of positive squares in only one way, i.e., 64481460624 + 56574049609 = 253932^2 + 237853^2 .

It is not a de Polignac number, because 121055510233 - 2²¹ = 121053413081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121055510833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1235260260 + ... + 1235260357.

It is an arithmetic number, because the mean of its divisors is an integer number (23469945871).

Almost surely, 2^121055510233 is an apocalyptic number.

It is an amenable number.

121055510233 is a deficient number, since it is larger than the sum of its proper divisors (19764164993).

121055510233 is an equidigital number, since it uses as much as digits as its factorization.

121055510233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470520631 (or 2470520624 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 121055510233 in words is "one hundred twenty-one billion, fifty-five million, five hundred ten thousand, two hundred thirty-three".