121325213013 has 16 divisors (see below), whose sum is σ = 170454305280. Its totient is φ = 76548463344.

The previous prime is 121325212997. The next prime is 121325213027. The reversal of 121325213013 is 310312523121.

It is a happy number.

It is not a de Polignac number, because 121325213013 - 2⁴ = 121325212997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121325213083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1026631 + ... + 1138692.

It is an arithmetic number, because the mean of its divisors is an integer number (10653394080).

Almost surely, 2^121325213013 is an apocalyptic number.

It is an amenable number.

121325213013 is a deficient number, since it is larger than the sum of its proper divisors (49129092267).

121325213013 is a wasteful number, since it uses less digits than its factorization.

121325213013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166328.

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 121325213013 its reverse (310312523121), we get a palindrome (431637736134).

The spelling of 121325213013 in words is "one hundred twenty-one billion, three hundred twenty-five million, two hundred thirteen thousand, thirteen".