121333011013 has 2 divisors, whose sum is σ = 121333011014. Its totient is φ = 121333011012.

The previous prime is 121333011011. The next prime is 121333011029. The reversal of 121333011013 is 310110333121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70733657764 + 50599353249 = 265958^2 + 224943^2 .

It is a cyclic number.

It is not a de Polignac number, because 121333011013 - 2¹ = 121333011011 is a prime.

It is a super-2 number, since 2×121333011013² (a number of 23 digits) contains 22 as substring.

Together with 121333011011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121333011011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60666505506 + 60666505507.

It is an arithmetic number, because the mean of its divisors is an integer number (60666505507).

Almost surely, 2^121333011013 is an apocalyptic number.

It is an amenable number.

121333011013 is a deficient number, since it is larger than the sum of its proper divisors (1).

121333011013 is an equidigital number, since it uses as much as digits as its factorization.

121333011013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 121333011013 its reverse (310110333121), we get a palindrome (431443344134).

The spelling of 121333011013 in words is "one hundred twenty-one billion, three hundred thirty-three million, eleven thousand, thirteen".