121103122013213 has 2 divisors, whose sum is σ = 121103122013214. Its totient is φ = 121103122013212.

The previous prime is 121103122013179. The next prime is 121103122013243. The reversal of 121103122013213 is 312310221301121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65188216462084 + 55914905551129 = 8073922^2 + 7477627^2 .

It is a cyclic number.

It is not a de Polignac number, because 121103122013213 - 2¹² = 121103122009117 is a prime.

It is a super-2 number, since 2×121103122013213² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121103122013243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60551561006606 + 60551561006607.

It is an arithmetic number, because the mean of its divisors is an integer number (60551561006607).

Almost surely, 2^{121103122013213} is an apocalyptic number.

It is an amenable number.

121103122013213 is a deficient number, since it is larger than the sum of its proper divisors (1).

121103122013213 is an equidigital number, since it uses as much as digits as its factorization.

121103122013213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 121103122013213 its reverse (312310221301121), we get a palindrome (433413343314334).

The spelling of 121103122013213 in words is "one hundred twenty-one trillion, one hundred three billion, one hundred twenty-two million, thirteen thousand, two hundred thirteen".