121111011013 has 8 divisors (see below), whose sum is σ = 126598824000. Its totient is φ = 115641707808.

The previous prime is 121111011001. The next prime is 121111011031. The reversal of 121111011013 is 310110111121.

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 121111011013 - 2¹³ = 121111002821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121111010984 and 121111011002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111012013) 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, 4614063 + ... + 4640236.

It is an arithmetic number, because the mean of its divisors is an integer number (15824853000).

Almost surely, 2^121111011013 is an apocalyptic number.

It is an amenable number.

121111011013 is a deficient number, since it is larger than the sum of its proper divisors (5487812987).

121111011013 is an equidigital number, since it uses as much as digits as its factorization.

121111011013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9254891.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 121111011013 its reverse (310110111121), we get a palindrome (431221122134).

The spelling of 121111011013 in words is "one hundred twenty-one billion, one hundred eleven million, eleven thousand, thirteen".