121333001011 has 4 divisors (see below), whose sum is σ = 123914554272. Its totient is φ = 118751447752.

The previous prime is 121333000951. The next prime is 121333001129. The reversal of 121333001011 is 110100333121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110100333121 = 491 ⋅224236931.

It is a cyclic number.

It is not a de Polignac number, because 121333001011 - 2⁷ = 121333000883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121333001611) 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, 1290776560 + ... + 1290776653.

It is an arithmetic number, because the mean of its divisors is an integer number (30978638568).

Almost surely, 2^121333001011 is an apocalyptic number.

121333001011 is a deficient number, since it is larger than the sum of its proper divisors (2581553261).

121333001011 is an equidigital number, since it uses as much as digits as its factorization.

121333001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581553260.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 121333001011 its reverse (110100333121), we get a palindrome (231433334132).

The spelling of 121333001011 in words is "one hundred twenty-one billion, three hundred thirty-three million, one thousand, eleven".