121148447811 has 8 divisors (see below), whose sum is σ = 171033102864. Its totient is φ = 76014712320.

The previous prime is 121148447731. The next prime is 121148447891. The reversal of 121148447811 is 118744841121.

It is an interprime number because it is at equal distance from previous prime (121148447731) and next prime (121148447891).

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

It is not a de Polignac number, because 121148447811 - 2¹⁷ = 121148316739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121148447891) 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, 1187729830 + ... + 1187729931.

It is an arithmetic number, because the mean of its divisors is an integer number (21379137858).

Almost surely, 2^121148447811 is an apocalyptic number.

121148447811 is a deficient number, since it is larger than the sum of its proper divisors (49884655053).

121148447811 is a wasteful number, since it uses less digits than its factorization.

121148447811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375459781.

The product of its digits is 57344, while the sum is 42.

The spelling of 121148447811 in words is "one hundred twenty-one billion, one hundred forty-eight million, four hundred forty-seven thousand, eight hundred eleven".