1011631160 has 32 divisors (see below), whose sum is σ = 2277339840. Its totient is φ = 404444544.

The previous prime is 1011631151. The next prime is 1011631177. The reversal of 1011631160 is 611361101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90014 + ... + 100626.

It is an arithmetic number, because the mean of its divisors is an integer number (71166870).

Almost surely, 2^1011631160 is an apocalyptic number.

1011631160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011631160 is an abundant number, since it is smaller than the sum of its proper divisors (1265708680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011631160 is a wasteful number, since it uses less digits than its factorization.

1011631160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13007 (or 13003 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1011631160 is about 31806.1497198262. The cubic root of 1011631160 is about 1003.8621181741.

Adding to 1011631160 its reverse (611361101), we get a palindrome (1622992261).

The spelling of 1011631160 in words is "one billion, eleven million, six hundred thirty-one thousand, one hundred sixty".