1151051213 has 8 divisors (see below), whose sum is σ = 1240006656. Its totient is φ = 1062154800.

The previous prime is 1151051189. The next prime is 1151051263. The reversal of 1151051213 is 3121501511.

It is a happy number.

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 1151051213 - 2¹⁰ = 1151050189 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 (1151051263) 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, 31028 + ... + 57138.

It is an arithmetic number, because the mean of its divisors is an integer number (155000832).

Almost surely, 2^1151051213 is an apocalyptic number.

1151051213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1151051213 is a deficient number, since it is larger than the sum of its proper divisors (88955443).

1151051213 is a wasteful number, since it uses less digits than its factorization.

1151051213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29515.

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 1151051213 is about 33927.1456653813. The cubic root of 1151051213 is about 1048.0086863512.

Adding to 1151051213 its reverse (3121501511), we get a palindrome (4272552724).

The spelling of 1151051213 in words is "one billion, one hundred fifty-one million, fifty-one thousand, two hundred thirteen".