1163231101 has 2 divisors, whose sum is σ = 1163231102. Its totient is φ = 1163231100.

The previous prime is 1163231063. The next prime is 1163231117. The reversal of 1163231101 is 1011323611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1017546201 + 145684900 = 31899^2 + 12070^2 .

It is a cyclic number.

It is not a de Polignac number, because 1163231101 - 2¹⁹ = 1162706813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1163231161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581615550 + 581615551.

It is an arithmetic number, because the mean of its divisors is an integer number (581615551).

Almost surely, 2^1163231101 is an apocalyptic number.

It is an amenable number.

1163231101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163231101 is an equidigital number, since it uses as much as digits as its factorization.

1163231101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1163231101 is about 34106.1739425577. The cubic root of 1163231101 is about 1051.6922375209.

Adding to 1163231101 its reverse (1011323611), we get a palindrome (2174554712).

The spelling of 1163231101 in words is "one billion, one hundred sixty-three million, two hundred thirty-one thousand, one hundred one".