131101000 has 32 divisors (see below), whose sum is σ = 306778680. Its totient is φ = 52440000.

The previous prime is 131100997. The next prime is 131101021. The reversal of 131101000 is 101131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 34786404 + 96314596 = 5898^2 + 9814^2 .

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, 64551 + ... + 66550.

Almost surely, 2^131101000 is an apocalyptic number.

131101000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131101000 is an abundant number, since it is smaller than the sum of its proper divisors (175677680).

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

131101000 is a wasteful number, since it uses less digits than its factorization.

131101000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131122 (or 131108 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 7.

The square root of 131101000 is about 11449.9344976292. The cubic root of 131101000 is about 508.0057969454.

Adding to 131101000 its reverse (101131), we get a palindrome (131202131).

The spelling of 131101000 in words is "one hundred thirty-one million, one hundred one thousand".