20131060 has 24 divisors (see below), whose sum is σ = 44762760. Its totient is φ = 7578624.

The previous prime is 20131031. The next prime is 20131061. The reversal of 20131060 is 6013102.

It can be written as a sum of positive squares in 4 ways, for example, as 4717584 + 15413476 = 2172^2 + 3926^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20131060.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29265 + ... + 29944.

It is an arithmetic number, because the mean of its divisors is an integer number (1865115).

Almost surely, 2^20131060 is an apocalyptic number.

20131060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20131060 is an abundant number, since it is smaller than the sum of its proper divisors (24631700).

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

20131060 is a wasteful number, since it uses less digits than its factorization.

20131060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59235 (or 59233 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 20131060 is about 4486.7649815875. The cubic root of 20131060 is about 272.0333905087.

Adding to 20131060 its reverse (6013102), we get a palindrome (26144162).

The spelling of 20131060 in words is "twenty million, one hundred thirty-one thousand, sixty".