121111211211013 has 8 divisors (see below), whose sum is σ = 123844407392160. Its totient is φ = 118400697156240.

The previous prime is 121111211210993. The next prime is 121111211211017. The reversal of 121111211211013 is 310112112111121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121111211211013 - 2²¹ = 121111209113861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111211211017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5670520795 + ... + 5670542152.

It is an arithmetic number, because the mean of its divisors is an integer number (15480550924020).

Almost surely, 2^{121111211211013} is an apocalyptic number.

It is an amenable number.

121111211211013 is a deficient number, since it is larger than the sum of its proper divisors (2733196181147).

121111211211013 is a wasteful number, since it uses less digits than its factorization.

121111211211013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11341063187.

The product of its (nonzero) digits is 24, while the sum is 19.

Adding to 121111211211013 its reverse (310112112111121), we get a palindrome (431223323322134).

The spelling of 121111211211013 in words is "one hundred twenty-one trillion, one hundred eleven billion, two hundred eleven million, two hundred eleven thousand, thirteen".