121711054837 has 4 divisors (see below), whose sum is σ = 121764275776. Its totient is φ = 121657833900.

The previous prime is 121711054831. The next prime is 121711054909. The reversal of 121711054837 is 738450117121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 738450117121 = 83227 ⋅8872723.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121711054837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121711054837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121711054831) 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, 26607039 + ... + 26611612.

It is an arithmetic number, because the mean of its divisors is an integer number (30441068944).

Almost surely, 2^121711054837 is an apocalyptic number.

It is an amenable number.

121711054837 is a deficient number, since it is larger than the sum of its proper divisors (53220939).

121711054837 is an equidigital number, since it uses as much as digits as its factorization.

121711054837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53220938.

The product of its (nonzero) digits is 47040, while the sum is 40.

The spelling of 121711054837 in words is "one hundred twenty-one billion, seven hundred eleven million, fifty-four thousand, eight hundred thirty-seven".