131867311 has 4 divisors (see below), whose sum is σ = 132098824. Its totient is φ = 131635800.

The previous prime is 131867291. The next prime is 131867341. The reversal of 131867311 is 113768131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131867311 - 2⁵ = 131867279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131867341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114900 + ... + 116041.

It is an arithmetic number, because the mean of its divisors is an integer number (33024706).

Almost surely, 2^131867311 is an apocalyptic number.

131867311 is a deficient number, since it is larger than the sum of its proper divisors (231513).

131867311 is an equidigital number, since it uses as much as digits as its factorization.

131867311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231512.

The product of its digits is 3024, while the sum is 31.

The square root of 131867311 is about 11483.3492936512. The cubic root of 131867311 is about 508.9936724279.

The spelling of 131867311 in words is "one hundred thirty-one million, eight hundred sixty-seven thousand, three hundred eleven".