1151112213 has 6 divisors (see below), whose sum is σ = 1662717654. Its totient is φ = 767408136.

The previous prime is 1151112197. The next prime is 1151112229. The reversal of 1151112213 is 3122111511.

It is an interprime number because it is at equal distance from previous prime (1151112197) and next prime (1151112229).

It can be written as a sum of positive squares in only one way, i.e., 1147989924 + 3122289 = 33882^2 + 1767^2 .

It is not a de Polignac number, because 1151112213 - 2⁴ = 1151112197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151112293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63950670 + ... + 63950687.

It is an arithmetic number, because the mean of its divisors is an integer number (277119609).

Almost surely, 2^1151112213 is an apocalyptic number.

It is an amenable number.

1151112213 is a deficient number, since it is larger than the sum of its proper divisors (511605441).

1151112213 is a wasteful number, since it uses less digits than its factorization.

1151112213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127901363 (or 127901360 counting only the distinct ones).

The product of its digits is 60, while the sum is 18.

The square root of 1151112213 is about 33928.0446386172. The cubic root of 1151112213 is about 1048.0271991100.

Adding to 1151112213 its reverse (3122111511), we get a palindrome (4273223724).

The spelling of 1151112213 in words is "one billion, one hundred fifty-one million, one hundred twelve thousand, two hundred thirteen".