1151402321 has 2 divisors, whose sum is σ = 1151402322. Its totient is φ = 1151402320.

The previous prime is 1151402233. The next prime is 1151402347. The reversal of 1151402321 is 1232041511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1034329921 + 117072400 = 32161^2 + 10820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1151402321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1151402293 and 1151402302.

It is not a weakly prime, because it can be changed into another prime (1151402521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575701160 + 575701161.

It is an arithmetic number, because the mean of its divisors is an integer number (575701161).

Almost surely, 2^1151402321 is an apocalyptic number.

It is an amenable number.

1151402321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151402321 is an equidigital number, since it uses as much as digits as its factorization.

1151402321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1151402321 is about 33932.3197114491. The cubic root of 1151402321 is about 1048.1152344128.

Adding to 1151402321 its reverse (1232041511), we get a palindrome (2383443832).

The spelling of 1151402321 in words is "one billion, one hundred fifty-one million, four hundred two thousand, three hundred twenty-one".