1163430311 has 2 divisors, whose sum is σ = 1163430312. Its totient is φ = 1163430310.

The previous prime is 1163430299. The next prime is 1163430347. The reversal of 1163430311 is 1130343611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1163430311 - 2²² = 1159236007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1163430811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581715155 + 581715156.

It is an arithmetic number, because the mean of its divisors is an integer number (581715156).

Almost surely, 2^1163430311 is an apocalyptic number.

1163430311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163430311 is an equidigital number, since it uses as much as digits as its factorization.

1163430311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1163430311 is about 34109.0942565176. The cubic root of 1163430311 is about 1051.7522702039.

Adding to 1163430311 its reverse (1130343611), we get a palindrome (2293773922).

The spelling of 1163430311 in words is "one billion, one hundred sixty-three million, four hundred thirty thousand, three hundred eleven".