121131023299757 has 2 divisors, whose sum is σ = 121131023299758. Its totient is φ = 121131023299756.

The previous prime is 121131023299751. The next prime is 121131023299799. The reversal of 121131023299757 is 757992320131121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118655401124836 + 2475622174921 = 10892906^2 + 1573411^2 .

It is an emirp because it is prime and its reverse (757992320131121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121131023299757 - 2³⁰ = 121129949557933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121131023299699 and 121131023299708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121131023299751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60565511649878 + 60565511649879.

It is an arithmetic number, because the mean of its divisors is an integer number (60565511649879).

Almost surely, 2^{121131023299757} is an apocalyptic number.

It is an amenable number.

121131023299757 is a deficient number, since it is larger than the sum of its proper divisors (1).

121131023299757 is an equidigital number, since it uses as much as digits as its factorization.

121131023299757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1428840, while the sum is 53.

The spelling of 121131023299757 in words is "one hundred twenty-one trillion, one hundred thirty-one billion, twenty-three million, two hundred ninety-nine thousand, seven hundred fifty-seven".