121451334105 has 16 divisors (see below), whose sum is σ = 194362591104. Its totient is φ = 64760559360.

The previous prime is 121451334083. The next prime is 121451334119. The reversal of 121451334105 is 501433154121.

It is not a de Polignac number, because 121451334105 - 2⁸ = 121451333849 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 768181 + ... + 912690.

It is an arithmetic number, because the mean of its divisors is an integer number (12147661944).

Almost surely, 2^121451334105 is an apocalyptic number.

121451334105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121451334105 is a deficient number, since it is larger than the sum of its proper divisors (72911256999).

121451334105 is a wasteful number, since it uses less digits than its factorization.

121451334105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685696.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 121451334105 its reverse (501433154121), we get a palindrome (622884488226).

The spelling of 121451334105 in words is "one hundred twenty-one billion, four hundred fifty-one million, three hundred thirty-four thousand, one hundred five".