1151130321 has 48 divisors (see below), whose sum is σ = 1882445760. Its totient is φ = 671448960.

The previous prime is 1151130319. The next prime is 1151130341. The reversal of 1151130321 is 1230311511.

It is not a de Polignac number, because 1151130321 - 2¹ = 1151130319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1151130294 and 1151130303.

It is not an unprimeable number, because it can be changed into a prime (1151130341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1570071 + ... + 1570803.

It is an arithmetic number, because the mean of its divisors is an integer number (39217620).

Almost surely, 2^1151130321 is an apocalyptic number.

1151130321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1151130321 is a deficient number, since it is larger than the sum of its proper divisors (731315439).

1151130321 is a wasteful number, since it uses less digits than its factorization.

1151130321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326 (or 1323 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1151130321 is about 33928.3114964479. The cubic root of 1151130321 is about 1048.0326945421.

Adding to 1151130321 its reverse (1230311511), we get a palindrome (2381441832).

The spelling of 1151130321 in words is "one billion, one hundred fifty-one million, one hundred thirty thousand, three hundred twenty-one".