121354011065 has 32 divisors (see below), whose sum is σ = 167065307136. Its totient is φ = 82896307200.

The previous prime is 121354011061. The next prime is 121354011083. The reversal of 121354011065 is 560110453121.

It is not a de Polignac number, because 121354011065 - 2² = 121354011061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121354011061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10617944 + ... + 10629366.

It is an arithmetic number, because the mean of its divisors is an integer number (5220790848).

Almost surely, 2^121354011065 is an apocalyptic number.

It is an amenable number.

121354011065 is a deficient number, since it is larger than the sum of its proper divisors (45711296071).

121354011065 is a wasteful number, since it uses less digits than its factorization.

121354011065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12569.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 121354011065 its reverse (560110453121), we get a palindrome (681464464186).

The spelling of 121354011065 in words is "one hundred twenty-one billion, three hundred fifty-four million, eleven thousand, sixty-five".