121140061049 has 4 divisors (see below), whose sum is σ = 138445784064. Its totient is φ = 103834338036.

The previous prime is 121140061013. The next prime is 121140061057. The reversal of 121140061049 is 940160041121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121140061049 - 2²⁸ = 120871625593 is a prime.

It is a super-3 number, since 3×121140061049³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121140061069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8652861497 + ... + 8652861510.

It is an arithmetic number, because the mean of its divisors is an integer number (34611446016).

Almost surely, 2^121140061049 is an apocalyptic number.

It is an amenable number.

121140061049 is a deficient number, since it is larger than the sum of its proper divisors (17305723015).

121140061049 is an equidigital number, since it uses as much as digits as its factorization.

121140061049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17305723014.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 121140061049 in words is "one hundred twenty-one billion, one hundred forty million, sixty-one thousand, forty-nine".