141231331 has 4 divisors (see below), whose sum is σ = 145048432. Its totient is φ = 137414232.

The previous prime is 141231301. The next prime is 141231353. The reversal of 141231331 is 133132141.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141231331 is a prime.

It is a super-2 number, since 2×141231331² = 39892577712063122, 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 = 141231299 and 141231308.

It is not an unprimeable number, because it can be changed into a prime (141231301) 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, 1908495 + ... + 1908568.

It is an arithmetic number, because the mean of its divisors is an integer number (36262108).

Almost surely, 2^141231331 is an apocalyptic number.

141231331 is a deficient number, since it is larger than the sum of its proper divisors (3817101).

141231331 is an equidigital number, since it uses as much as digits as its factorization.

141231331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3817100.

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

The square root of 141231331 is about 11884.0788873181. The cubic root of 141231331 is about 520.7672733767.

Adding to 141231331 its reverse (133132141), we get a palindrome (274363472).

The spelling of 141231331 in words is "one hundred forty-one million, two hundred thirty-one thousand, three hundred thirty-one".