121052411281 has 2 divisors, whose sum is σ = 121052411282. Its totient is φ = 121052411280.

The previous prime is 121052411251. The next prime is 121052411353. The reversal of 121052411281 is 182114250121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94504597056 + 26547814225 = 307416^2 + 162935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121052411281 is a prime.

It is a super-2 number, since 2×121052411281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121052411201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60526205640 + 60526205641.

It is an arithmetic number, because the mean of its divisors is an integer number (60526205641).

Almost surely, 2^121052411281 is an apocalyptic number.

It is an amenable number.

121052411281 is a deficient number, since it is larger than the sum of its proper divisors (1).

121052411281 is an equidigital number, since it uses as much as digits as its factorization.

121052411281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 28.

The spelling of 121052411281 in words is "one hundred twenty-one billion, fifty-two million, four hundred eleven thousand, two hundred eighty-one".