1111301213 has 4 divisors (see below), whose sum is σ = 1212328608. Its totient is φ = 1010273820.

The previous prime is 1111301201. The next prime is 1111301267. The reversal of 1111301213 is 3121031111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111301213 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 (1111306213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50513681 + ... + 50513702.

It is an arithmetic number, because the mean of its divisors is an integer number (303082152).

Almost surely, 2^1111301213 is an apocalyptic number.

It is an amenable number.

1111301213 is a deficient number, since it is larger than the sum of its proper divisors (101027395).

1111301213 is a wasteful number, since it uses less digits than its factorization.

1111301213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101027394.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1111301213 is about 33336.1847397089. The cubic root of 1111301213 is about 1035.8032343597.

Adding to 1111301213 its reverse (3121031111), we get a palindrome (4232332324).

The spelling of 1111301213 in words is "one billion, one hundred eleven million, three hundred one thousand, two hundred thirteen".