121102013 has 2 divisors, whose sum is σ = 121102014. Its totient is φ = 121102012.

The previous prime is 121102001. The next prime is 121102021. The reversal of 121102013 is 310201121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109453444 + 11648569 = 10462^2 + 3413^2 .

It is a cyclic number.

It is not a de Polignac number, because 121102013 - 2⁴ = 121101997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121101985 and 121102003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121107013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60551006 + 60551007.

It is an arithmetic number, because the mean of its divisors is an integer number (60551007).

Almost surely, 2^121102013 is an apocalyptic number.

It is an amenable number.

121102013 is a deficient number, since it is larger than the sum of its proper divisors (1).

121102013 is an equidigital number, since it uses as much as digits as its factorization.

121102013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 121102013 is about 11004.6359776232. The cubic root of 121102013 is about 494.7477039634.

Adding to 121102013 its reverse (310201121), we get a palindrome (431303134).

The spelling of 121102013 in words is "one hundred twenty-one million, one hundred two thousand, thirteen".