121333011005 has 4 divisors (see below), whose sum is σ = 145599613212. Its totient is φ = 97066408800.

The previous prime is 121333010921. The next prime is 121333011011. The reversal of 121333011005 is 500110333121.

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 48712462681 + 72620548324 = 220709^2 + 269482^2 .

It is not a de Polignac number, because 121333011005 - 2¹⁶ = 121332945469 is a prime.

It is a super-2 number, since 2×121333011005² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12133301096 + ... + 12133301105.

It is an arithmetic number, because the mean of its divisors is an integer number (36399903303).

Almost surely, 2^121333011005 is an apocalyptic number.

It is an amenable number.

121333011005 is a deficient number, since it is larger than the sum of its proper divisors (24266602207).

121333011005 is an equidigital number, since it uses as much as digits as its factorization.

121333011005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24266602206.

The product of its (nonzero) digits is 270, while the sum is 20.

Adding to 121333011005 its reverse (500110333121), we get a palindrome (621443344126).

The spelling of 121333011005 in words is "one hundred twenty-one billion, three hundred thirty-three million, eleven thousand, five".