121121115053 has 2 divisors, whose sum is σ = 121121115054. Its totient is φ = 121121115052.

The previous prime is 121121114999. The next prime is 121121115067. The reversal of 121121115053 is 350511121121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81943642564 + 39177472489 = 286258^2 + 197933^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121121115053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121121115253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560557526 + 60560557527.

It is an arithmetic number, because the mean of its divisors is an integer number (60560557527).

Almost surely, 2^121121115053 is an apocalyptic number.

It is an amenable number.

121121115053 is a deficient number, since it is larger than the sum of its proper divisors (1).

121121115053 is an equidigital number, since it uses as much as digits as its factorization.

121121115053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 23.

Adding to 121121115053 its reverse (350511121121), we get a palindrome (471632236174).

The spelling of 121121115053 in words is "one hundred twenty-one billion, one hundred twenty-one million, one hundred fifteen thousand, fifty-three".