121347226877311 has 4 divisors (see below), whose sum is σ = 121367274335352. Its totient is φ = 121327179419272.

The previous prime is 121347226877257. The next prime is 121347226877323. The reversal of 121347226877311 is 113778622743121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121347226877311 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 (121347226877381) 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, 10023719941 + ... + 10023732046.

It is an arithmetic number, because the mean of its divisors is an integer number (30341818583838).

Almost surely, 2^{121347226877311} is an apocalyptic number.

121347226877311 is a deficient number, since it is larger than the sum of its proper divisors (20047458041).

121347226877311 is an equidigital number, since it uses as much as digits as its factorization.

121347226877311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20047458040.

The product of its digits is 4741632, while the sum is 55.

The spelling of 121347226877311 in words is "one hundred twenty-one trillion, three hundred forty-seven billion, two hundred twenty-six million, eight hundred seventy-seven thousand, three hundred eleven".