121204234043013 has 24 divisors (see below), whose sum is σ = 177633271938528. Its totient is φ = 73456854988000.

The previous prime is 121204234042979. The next prime is 121204234043047. The reversal of 121204234043013 is 310340432402121.

It is an interprime number because it is at equal distance from previous prime (121204234042979) and next prime (121204234043047).

It is a de Polignac number, because none of the positive numbers 2^k-121204234043013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121204234043813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183017503 + ... + 183678563.

It is an arithmetic number, because the mean of its divisors is an integer number (7401386330772).

Almost surely, 2^{121204234043013} is an apocalyptic number.

It is an amenable number.

121204234043013 is a deficient number, since it is larger than the sum of its proper divisors (56429037895515).

121204234043013 is a wasteful number, since it uses less digits than its factorization.

121204234043013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166177 (or 1166166 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 121204234043013 its reverse (310340432402121), we get a palindrome (431544666445134).

The spelling of 121204234043013 in words is "one hundred twenty-one trillion, two hundred four billion, two hundred thirty-four million, forty-three thousand, thirteen".