1130161111 has 4 divisors (see below), whose sum is σ = 1131109632. Its totient is φ = 1129212592.

The previous prime is 1130161103. The next prime is 1130161121. The reversal of 1130161111 is 1111610311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1130161111 - 2³ = 1130161103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130161121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472471 + ... + 474856.

It is an arithmetic number, because the mean of its divisors is an integer number (282777408).

Almost surely, 2^1130161111 is an apocalyptic number.

1130161111 is a deficient number, since it is larger than the sum of its proper divisors (948521).

1130161111 is an equidigital number, since it uses as much as digits as its factorization.

1130161111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948520.

The product of its (nonzero) digits is 18, while the sum is 16.

The square root of 1130161111 is about 33617.8689241302. The cubic root of 1130161111 is about 1041.6299364485.

Adding to 1130161111 its reverse (1111610311), we get a palindrome (2241771422).

The spelling of 1130161111 in words is "one billion, one hundred thirty million, one hundred sixty-one thousand, one hundred eleven".