131021030 has 32 divisors (see below), whose sum is σ = 271206144. Its totient is φ = 44642016.

The previous prime is 131021029. The next prime is 131021069. The reversal of 131021030 is 30120131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5669 + ... + 17151.

It is an arithmetic number, because the mean of its divisors is an integer number (8475192).

Almost surely, 2^131021030 is an apocalyptic number.

131021030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131021030 is an abundant number, since it is smaller than the sum of its proper divisors (140185114).

131021030 is a wasteful number, since it uses less digits than its factorization.

131021030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11660.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 131021030 is about 11446.4418052074. The cubic root of 131021030 is about 507.9024835034.

Adding to 131021030 its reverse (30120131), we get a palindrome (161141161).

The spelling of 131021030 in words is "one hundred thirty-one million, twenty-one thousand, thirty".