121103002110257 has 2 divisors, whose sum is σ = 121103002110258. Its totient is φ = 121103002110256.

The previous prime is 121103002110229. The next prime is 121103002110317. The reversal of 121103002110257 is 752011200301121.

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., 120061196075536 + 1041806034721 = 10957244^2 + 1020689^2 .

It is a cyclic number.

It is not a de Polignac number, because 121103002110257 - 2²² = 121102997915953 is a prime.

It is a super-2 number, since 2×121103002110257² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121103002110157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60551501055128 + 60551501055129.

It is an arithmetic number, because the mean of its divisors is an integer number (60551501055129).

Almost surely, 2^{121103002110257} is an apocalyptic number.

It is an amenable number.

121103002110257 is a deficient number, since it is larger than the sum of its proper divisors (1).

121103002110257 is an equidigital number, since it uses as much as digits as its factorization.

121103002110257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 26.

Adding to 121103002110257 its reverse (752011200301121), we get a palindrome (873114202411378).

The spelling of 121103002110257 in words is "one hundred twenty-one trillion, one hundred three billion, two million, one hundred ten thousand, two hundred fifty-seven".