121126446545161 has 4 divisors (see below), whose sum is σ = 121126544685072. Its totient is φ = 121126348405252.

The previous prime is 121126446545101. The next prime is 121126446545177. The reversal of 121126446545161 is 161545644621121.

It is a happy number.

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 121126446545161 - 2¹⁹ = 121126446020873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121126446545101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47194735 + ... + 49695028.

It is an arithmetic number, because the mean of its divisors is an integer number (30281636171268).

Almost surely, 2^{121126446545161} is an apocalyptic number.

It is an amenable number.

121126446545161 is a deficient number, since it is larger than the sum of its proper divisors (98139911).

121126446545161 is an equidigital number, since it uses as much as digits as its factorization.

121126446545161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98139910.

The product of its digits is 1382400, while the sum is 49.

The spelling of 121126446545161 in words is "one hundred twenty-one trillion, one hundred twenty-six billion, four hundred forty-six million, five hundred forty-five thousand, one hundred sixty-one".