1131217763 has 32 divisors (see below), whose sum is σ = 1347010560. Its totient is φ = 939945600.

The previous prime is 1131217751. The next prime is 1131217771. The reversal of 1131217763 is 3677121311.

It is not a de Polignac number, because 1131217763 - 2¹⁰ = 1131216739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131217463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 982238 + ... + 983388.

It is an arithmetic number, because the mean of its divisors is an integer number (42094080).

Almost surely, 2^1131217763 is an apocalyptic number.

1131217763 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1131217763 is a deficient number, since it is larger than the sum of its proper divisors (215792797).

1131217763 is a wasteful number, since it uses less digits than its factorization.

1131217763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379.

The product of its digits is 5292, while the sum is 32.

The square root of 1131217763 is about 33633.5808828022. The cubic root of 1131217763 is about 1041.9544617178.

The spelling of 1131217763 in words is "one billion, one hundred thirty-one million, two hundred seventeen thousand, seven hundred sixty-three".