131214331 has 4 divisors (see below), whose sum is σ = 131894392. Its totient is φ = 130534272.

The previous prime is 131214329. The next prime is 131214373. The reversal of 131214331 is 133412131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133412131 = 347 ⋅384473.

It is a cyclic number.

It is not a de Polignac number, because 131214331 - 2¹ = 131214329 is a prime.

It is a super-2 number, since 2×131214331² = 34434401319555122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131214299 and 131214308.

It is not an unprimeable number, because it can be changed into a prime (131214631) 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, 339741 + ... + 340126.

It is an arithmetic number, because the mean of its divisors is an integer number (32973598).

Almost surely, 2^131214331 is an apocalyptic number.

131214331 is a deficient number, since it is larger than the sum of its proper divisors (680061).

131214331 is an equidigital number, since it uses as much as digits as its factorization.

131214331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680060.

The product of its digits is 216, while the sum is 19.

The square root of 131214331 is about 11454.8824088246. The cubic root of 131214331 is about 508.1521376121.

Adding to 131214331 its reverse (133412131), we get a palindrome (264626462).

The spelling of 131214331 in words is "one hundred thirty-one million, two hundred fourteen thousand, three hundred thirty-one".