1151312043 has 16 divisors (see below), whose sum is σ = 1754888960. Its totient is φ = 657701856.

The previous prime is 1151312039. The next prime is 1151312051. The reversal of 1151312043 is 3402131511.

It is not a de Polignac number, because 1151312043 - 2² = 1151312039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151312053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100821 + ... + 111657.

It is an arithmetic number, because the mean of its divisors is an integer number (109680560).

Almost surely, 2^1151312043 is an apocalyptic number.

1151312043 is a deficient number, since it is larger than the sum of its proper divisors (603576917).

1151312043 is a wasteful number, since it uses less digits than its factorization.

1151312043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15906.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1151312043 is about 33930.9894197030. The cubic root of 1151312043 is about 1048.0878405069.

Adding to 1151312043 its reverse (3402131511), we get a palindrome (4553443554).

The spelling of 1151312043 in words is "one billion, one hundred fifty-one million, three hundred twelve thousand, forty-three".