121761560105 has 8 divisors (see below), whose sum is σ = 146264978112. Its totient is φ = 97308510768.

The previous prime is 121761560083. The next prime is 121761560117. The reversal of 121761560105 is 501065167121.

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 121761560105 - 2¹⁰ = 121761559081 is a prime.

It is a super-2 number, since 2×121761560105² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12586847 + ... + 12596516.

It is an arithmetic number, because the mean of its divisors is an integer number (18283122264).

Almost surely, 2^121761560105 is an apocalyptic number.

It is an amenable number.

121761560105 is a deficient number, since it is larger than the sum of its proper divisors (24503418007).

121761560105 is an equidigital number, since it uses as much as digits as its factorization.

121761560105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25184335.

The product of its (nonzero) digits is 12600, while the sum is 35.

The spelling of 121761560105 in words is "one hundred twenty-one billion, seven hundred sixty-one million, five hundred sixty thousand, one hundred five".