121301312013 has 24 divisors (see below), whose sum is σ = 204503939328. Its totient is φ = 67840245792.

The previous prime is 121301311991. The next prime is 121301312029. The reversal of 121301312013 is 310213103121.

It is not a de Polignac number, because 121301312013 - 2¹⁷ = 121301180941 is a prime.

It is a super-2 number, since 2×121301312013² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121301312513) 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, 20480206 + ... + 20486127.

It is an arithmetic number, because the mean of its divisors is an integer number (8520997472).

Almost surely, 2^121301312013 is an apocalyptic number.

It is an amenable number.

121301312013 is a deficient number, since it is larger than the sum of its proper divisors (83202627315).

121301312013 is a wasteful number, since it uses less digits than its factorization.

121301312013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40966393 (or 40966390 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 121301312013 its reverse (310213103121), we get a palindrome (431514415134).

The spelling of 121301312013 in words is "one hundred twenty-one billion, three hundred one million, three hundred twelve thousand, thirteen".