1130661131 has 4 divisors (see below), whose sum is σ = 1139292264. Its totient is φ = 1122030000.

The previous prime is 1130661121. The next prime is 1130661151. The reversal of 1130661131 is 1311660311.

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 1130661131 - 2¹⁴ = 1130644747 is a prime.

It is a super-2 number, since 2×1130661131² = 2556789186308398322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1130661097 and 1130661106.

It is not an unprimeable number, because it can be changed into a prime (1130661121) 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, 4315370 + ... + 4315631.

It is an arithmetic number, because the mean of its divisors is an integer number (284823066).

Almost surely, 2^1130661131 is an apocalyptic number.

1130661131 is a deficient number, since it is larger than the sum of its proper divisors (8631133).

1130661131 is an equidigital number, since it uses as much as digits as its factorization.

1130661131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8631132.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 1130661131 is about 33625.3049205505. The cubic root of 1130661131 is about 1041.7835307762.

The spelling of 1130661131 in words is "one billion, one hundred thirty million, six hundred sixty-one thousand, one hundred thirty-one".