20131076 has 24 divisors (see below), whose sum is σ = 40385856. Its totient is φ = 8601120.

The previous prime is 20131061. The next prime is 20131079. The reversal of 20131076 is 67013102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20131079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10211 + ... + 12021.

It is an arithmetic number, because the mean of its divisors is an integer number (1682744).

Almost surely, 2^20131076 is an apocalyptic number.

It is an amenable number.

20131076 is an abundant number, since it is smaller than the sum of its proper divisors (20254780).

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

20131076 is a wasteful number, since it uses less digits than its factorization.

20131076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219 (or 2217 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 20131076 is about 4486.7667646090. The cubic root of 20131076 is about 272.0334625786.

Adding to 20131076 its reverse (67013102), we get a palindrome (87144178).

The spelling of 20131076 in words is "twenty million, one hundred thirty-one thousand, seventy-six".