121434772611 has 8 divisors (see below), whose sum is σ = 162259740864. Its totient is φ = 80783159720.

The previous prime is 121434772603. The next prime is 121434772699. The reversal of 121434772611 is 116277434121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121434772611 - 2³ = 121434772603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121434772611.

It is not an unprimeable number, because it can be changed into a prime (121434776611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43337205 + ... + 43340006.

It is an arithmetic number, because the mean of its divisors is an integer number (20282467608).

Almost surely, 2^121434772611 is an apocalyptic number.

121434772611 is a deficient number, since it is larger than the sum of its proper divisors (40824968253).

121434772611 is an equidigital number, since it uses as much as digits as its factorization.

121434772611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86677681.

The product of its digits is 56448, while the sum is 39.

The spelling of 121434772611 in words is "one hundred twenty-one billion, four hundred thirty-four million, seven hundred seventy-two thousand, six hundred eleven".