1131000611 has 4 divisors (see below), whose sum is σ = 1218000672. Its totient is φ = 1044000552.

The previous prime is 1131000601. The next prime is 1131000613. The reversal of 1131000611 is 1160001311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1160001311 = 7 ⋅165714473.

It is a cyclic number.

It is not a de Polignac number, because 1131000611 - 2¹⁴ = 1130984227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131000613) 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, 43500011 + ... + 43500036.

It is an arithmetic number, because the mean of its divisors is an integer number (304500168).

Almost surely, 2^1131000611 is an apocalyptic number.

1131000611 is a deficient number, since it is larger than the sum of its proper divisors (87000061).

1131000611 is an equidigital number, since it uses as much as digits as its factorization.

1131000611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87000060.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1131000611 is about 33630.3525256575. The cubic root of 1131000611 is about 1041.8877852027.

Adding to 1131000611 its reverse (1160001311), we get a palindrome (2291001922).

The spelling of 1131000611 in words is "one billion, one hundred thirty-one million, six hundred eleven", and thus it is an aban number.