121342021311241 has 16 divisors (see below), whose sum is σ = 127058903792784. Its totient is φ = 115772118441984.

The previous prime is 121342021311193. The next prime is 121342021311293. The reversal of 121342021311241 is 142113120243121.

It can be written as a sum of positive squares in 8 ways, for example, as 48140992133641 + 73201029177600 = 6938371^2 + 8555760^2 .

It is a cyclic number.

It is not a de Polignac number, because 121342021311241 - 2³⁵ = 121307661572873 is a prime.

It is a super-2 number, since 2×121342021311241² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121342021318241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129373336 + ... + 130307881.

It is an arithmetic number, because the mean of its divisors is an integer number (7941181487049).

Almost surely, 2^{121342021311241} is an apocalyptic number.

It is an amenable number.

121342021311241 is a deficient number, since it is larger than the sum of its proper divisors (5716882481543).

121342021311241 is a wasteful number, since it uses less digits than its factorization.

121342021311241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259681500.

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 121342021311241 its reverse (142113120243121), we get a palindrome (263455141554362).

The spelling of 121342021311241 in words is "one hundred twenty-one trillion, three hundred forty-two billion, twenty-one million, three hundred eleven thousand, two hundred forty-one".