121711071707 has 4 divisors (see below), whose sum is σ = 121750552920. Its totient is φ = 121671590496.

The previous prime is 121711071697. The next prime is 121711071829. The reversal of 121711071707 is 707170117121.

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 121711071707 - 2⁸ = 121711071451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121711071407) 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, 19735982 + ... + 19742147.

It is an arithmetic number, because the mean of its divisors is an integer number (30437638230).

Almost surely, 2^121711071707 is an apocalyptic number.

121711071707 is a deficient number, since it is larger than the sum of its proper divisors (39481213).

121711071707 is an equidigital number, since it uses as much as digits as its factorization.

121711071707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39481212.

The product of its (nonzero) digits is 4802, while the sum is 35.

Adding to 121711071707 its reverse (707170117121), we get a palindrome (828881188828).

The spelling of 121711071707 in words is "one hundred twenty-one billion, seven hundred eleven million, seventy-one thousand, seven hundred seven".