142212052013 has 4 divisors (see below), whose sum is σ = 143678155740. Its totient is φ = 140745948288.

The previous prime is 142212052007. The next prime is 142212052039. The reversal of 142212052013 is 310250212241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 117071412649 + 25140639364 = 342157^2 + 158558^2 .

It is a cyclic number.

It is not a de Polignac number, because 142212052013 - 2⁴ = 142212051997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142212052013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142212052063) 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, 733051718 + ... + 733051911.

It is an arithmetic number, because the mean of its divisors is an integer number (35919538935).

Almost surely, 2^142212052013 is an apocalyptic number.

It is an amenable number.

142212052013 is a deficient number, since it is larger than the sum of its proper divisors (1466103727).

142212052013 is an equidigital number, since it uses as much as digits as its factorization.

142212052013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466103726.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 142212052013 its reverse (310250212241), we get a palindrome (452462264254).

The spelling of 142212052013 in words is "one hundred forty-two billion, two hundred twelve million, fifty-two thousand, thirteen".