121101101057 has 2 divisors, whose sum is σ = 121101101058. Its totient is φ = 121101101056.

The previous prime is 121101101053. The next prime is 121101101071. The reversal of 121101101057 is 750101101121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108740998081 + 12360102976 = 329759^2 + 111176^2 .

It is a cyclic number.

It is not a de Polignac number, because 121101101057 - 2² = 121101101053 is a prime.

It is not a weakly prime, because it can be changed into another prime (121101101053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550550528 + 60550550529.

It is an arithmetic number, because the mean of its divisors is an integer number (60550550529).

Almost surely, 2^121101101057 is an apocalyptic number.

It is an amenable number.

121101101057 is a deficient number, since it is larger than the sum of its proper divisors (1).

121101101057 is an equidigital number, since it uses as much as digits as its factorization.

121101101057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70, while the sum is 20.

Adding to 121101101057 its reverse (750101101121), we get a palindrome (871202202178).

The spelling of 121101101057 in words is "one hundred twenty-one billion, one hundred one million, one hundred one thousand, fifty-seven".