121042265161 has 8 divisors (see below), whose sum is σ = 122905097280. Its totient is φ = 119192981328.

The previous prime is 121042265153. The next prime is 121042265171. The reversal of 121042265161 is 161562240121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121042265161 - 2³ = 121042265153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121042265101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3369066 + ... + 3404803.

It is an arithmetic number, because the mean of its divisors is an integer number (15363137160).

Almost surely, 2^121042265161 is an apocalyptic number.

It is an amenable number.

121042265161 is a deficient number, since it is larger than the sum of its proper divisors (1862832119).

121042265161 is a wasteful number, since it uses less digits than its factorization.

121042265161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6774143.

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 121042265161 in words is "one hundred twenty-one billion, forty-two million, two hundred sixty-five thousand, one hundred sixty-one".