11121121013 has 8 divisors (see below), whose sum is σ = 11845818432. Its totient is φ = 10404258496.

The previous prime is 11121121007. The next prime is 11121121019. The reversal of 11121121013 is 31012112111.

It is an interprime number because it is at equal distance from previous prime (11121121007) and next prime (11121121019).

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 11121121013 - 2¹⁴ = 11121104629 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 (11121121019) 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, 1955795 + ... + 1961472.

It is an arithmetic number, because the mean of its divisors is an integer number (1480727304).

Almost surely, 2^11121121013 is an apocalyptic number.

It is an amenable number.

11121121013 is a deficient number, since it is larger than the sum of its proper divisors (724697419).

11121121013 is a wasteful number, since it uses less digits than its factorization.

11121121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917451.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11121121013 its reverse (31012112111), we get a palindrome (42133233124).

The spelling of 11121121013 in words is "eleven billion, one hundred twenty-one million, one hundred twenty-one thousand, thirteen".