121242770353 has 2 divisors, whose sum is σ = 121242770354. Its totient is φ = 121242770352.

The previous prime is 121242770333. The next prime is 121242770357. The reversal of 121242770353 is 353077242121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71135290944 + 50107479409 = 266712^2 + 223847^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121242770353 is a prime.

It is not a weakly prime, because it can be changed into another prime (121242770357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60621385176 + 60621385177.

It is an arithmetic number, because the mean of its divisors is an integer number (60621385177).

Almost surely, 2^121242770353 is an apocalyptic number.

It is an amenable number.

121242770353 is a deficient number, since it is larger than the sum of its proper divisors (1).

121242770353 is an equidigital number, since it uses as much as digits as its factorization.

121242770353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 121242770353 in words is "one hundred twenty-one billion, two hundred forty-two million, seven hundred seventy thousand, three hundred fifty-three".