131000311 has 16 divisors (see below), whose sum is σ = 143829504. Its totient is φ = 118587744.

The previous prime is 131000293. The next prime is 131000321. The reversal of 131000311 is 113000131.

It is not a de Polignac number, because 131000311 - 2¹³ = 130992119 is a prime.

It is a super-2 number, since 2×131000311² = 34322162964193442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179830 + ... + 180556.

It is an arithmetic number, because the mean of its divisors is an integer number (8989344).

Almost surely, 2^131000311 is an apocalyptic number.

131000311 is a deficient number, since it is larger than the sum of its proper divisors (12829193).

131000311 is a wasteful number, since it uses less digits than its factorization.

131000311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 131000311 is about 11445.5367283496. The cubic root of 131000311 is about 507.8757097194.

Adding to 131000311 its reverse (113000131), we get a palindrome (244000442).

The spelling of 131000311 in words is "one hundred thirty-one million, three hundred eleven", and thus it is an aban number.