142031313 has 24 divisors (see below), whose sum is σ = 213461248. Its totient is φ = 94373424.

The previous prime is 142031293. The next prime is 142031317. The reversal of 142031313 is 313130241.

It is not a de Polignac number, because 142031313 - 2⁶ = 142031249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142031317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89856 + ... + 91422.

Almost surely, 2^142031313 is an apocalyptic number.

It is an amenable number.

142031313 is a deficient number, since it is larger than the sum of its proper divisors (71429935).

142031313 is an equidigital number, since it uses as much as digits as its factorization.

142031313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955 (or 1943 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 142031313 is about 11917.6890796832. The cubic root of 142031313 is about 521.7486899689.

Adding to 142031313 its reverse (313130241), we get a palindrome (455161554).

The spelling of 142031313 in words is "one hundred forty-two million, thirty-one thousand, three hundred thirteen".