121494605311 has 4 divisors (see below), whose sum is σ = 122124111232. Its totient is φ = 120865099392.

The previous prime is 121494605293. The next prime is 121494605333. The reversal of 121494605311 is 113506494121.

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 121494605311 - 2³⁵ = 87134866943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121494605411) 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, 314752671 + ... + 314753056.

It is an arithmetic number, because the mean of its divisors is an integer number (30531027808).

Almost surely, 2^121494605311 is an apocalyptic number.

121494605311 is a deficient number, since it is larger than the sum of its proper divisors (629505921).

121494605311 is an equidigital number, since it uses as much as digits as its factorization.

121494605311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629505920.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 121494605311 in words is "one hundred twenty-one billion, four hundred ninety-four million, six hundred five thousand, three hundred eleven".