103415502121 has 2 divisors, whose sum is σ = 103415502122. Its totient is φ = 103415502120.

The previous prime is 103415502107. The next prime is 103415502187. The reversal of 103415502121 is 121205514301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79489599721 + 23925902400 = 281939^2 + 154680^2 .

It is an emirp because it is prime and its reverse (121205514301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103415502121 - 2⁵ = 103415502089 is a prime.

It is not a weakly prime, because it can be changed into another prime (103415502191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51707751060 + 51707751061.

It is an arithmetic number, because the mean of its divisors is an integer number (51707751061).

Almost surely, 2^103415502121 is an apocalyptic number.

It is an amenable number.

103415502121 is a deficient number, since it is larger than the sum of its proper divisors (1).

103415502121 is an equidigital number, since it uses as much as digits as its factorization.

103415502121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 25.

The spelling of 103415502121 in words is "one hundred three billion, four hundred fifteen million, five hundred two thousand, one hundred twenty-one".