121121013133 has 2 divisors, whose sum is σ = 121121013134. Its totient is φ = 121121013132.

The previous prime is 121121013127. The next prime is 121121013157. The reversal of 121121013133 is 331310121121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106163233929 + 14957779204 = 325827^2 + 122302^2 .

It is a cyclic number.

It is not a de Polignac number, because 121121013133 - 2¹³ = 121121004941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121121013133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121121013113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560506566 + 60560506567.

It is an arithmetic number, because the mean of its divisors is an integer number (60560506567).

Almost surely, 2^121121013133 is an apocalyptic number.

It is an amenable number.

121121013133 is a deficient number, since it is larger than the sum of its proper divisors (1).

121121013133 is an equidigital number, since it uses as much as digits as its factorization.

121121013133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 121121013133 its reverse (331310121121), we get a palindrome (452431134254).

The spelling of 121121013133 in words is "one hundred twenty-one billion, one hundred twenty-one million, thirteen thousand, one hundred thirty-three".