121761304667 has 4 divisors (see below), whose sum is σ = 122943453360. Its totient is φ = 120579155976.

The previous prime is 121761304631. The next prime is 121761304673. The reversal of 121761304667 is 766403167121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121761304667 - 2⁶ = 121761304603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121763304667) 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, 591074192 + ... + 591074397.

It is an arithmetic number, because the mean of its divisors is an integer number (30735863340).

Almost surely, 2^121761304667 is an apocalyptic number.

121761304667 is a deficient number, since it is larger than the sum of its proper divisors (1182148693).

121761304667 is a wasteful number, since it uses less digits than its factorization.

121761304667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182148692.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 121761304667 in words is "one hundred twenty-one billion, seven hundred sixty-one million, three hundred four thousand, six hundred sixty-seven".