142431013 has 2 divisors, whose sum is σ = 142431014. Its totient is φ = 142431012.

The previous prime is 142431001. The next prime is 142431031. The reversal of 142431013 is 310134241.

142431013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (142431031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140707044 + 1723969 = 11862^2 + 1313^2 .

It is an emirp because it is prime and its reverse (310134241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142431013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142431613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71215506 + 71215507.

It is an arithmetic number, because the mean of its divisors is an integer number (71215507).

Almost surely, 2^142431013 is an apocalyptic number.

It is an amenable number.

142431013 is a deficient number, since it is larger than the sum of its proper divisors (1).

142431013 is an equidigital number, since it uses as much as digits as its factorization.

142431013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 142431013 is about 11934.4464890501. The cubic root of 142431013 is about 522.2376610914.

Adding to 142431013 its reverse (310134241), we get a palindrome (452565254).

The spelling of 142431013 in words is "one hundred forty-two million, four hundred thirty-one thousand, thirteen".