1111511213 has 8 divisors (see below), whose sum is σ = 1137684288. Its totient is φ = 1085634144.

The previous prime is 1111511209. The next prime is 1111511227. The reversal of 1111511213 is 3121151111.

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 1111511213 - 2² = 1111511209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111511191 and 1111511200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111517213) 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, 66395 + ... + 81432.

It is an arithmetic number, because the mean of its divisors is an integer number (142210536).

Almost surely, 2^1111511213 is an apocalyptic number.

It is an amenable number.

1111511213 is a deficient number, since it is larger than the sum of its proper divisors (26173075).

1111511213 is a wasteful number, since it uses less digits than its factorization.

1111511213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148003.

The product of its digits is 30, while the sum is 17.

The square root of 1111511213 is about 33339.3343214888. The cubic root of 1111511213 is about 1035.8684746914.

Adding to 1111511213 its reverse (3121151111), we get a palindrome (4232662324).

The spelling of 1111511213 in words is "one billion, one hundred eleven million, five hundred eleven thousand, two hundred thirteen".