131021106 has 16 divisors (see below), whose sum is σ = 262424448. Its totient is φ = 43610000.

The previous prime is 131021071. The next prime is 131021119. The reversal of 131021106 is 601120131.

It is a super-3 number, since 3×131021106³ (a number of 25 digits) contains 333 as substring.

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, 11370 + ... + 19781.

It is an arithmetic number, because the mean of its divisors is an integer number (16401528).

Almost surely, 2^131021106 is an apocalyptic number.

131021106 is an abundant number, since it is smaller than the sum of its proper divisors (131403342).

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

131021106 is a wasteful number, since it uses less digits than its factorization.

131021106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31857.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 131021106 is about 11446.4451250159. The cubic root of 131021106 is about 507.9025817080.

Adding to 131021106 its reverse (601120131), we get a palindrome (732141237).

The spelling of 131021106 in words is "one hundred thirty-one million, twenty-one thousand, one hundred six".