202142444213 has 4 divisors (see below), whose sum is σ = 203025162540. Its totient is φ = 201259725888.

The previous prime is 202142444201. The next prime is 202142444263. The reversal of 202142444213 is 312444241202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312444241202 = 2 ⋅156222120601.

It can be written as a sum of positive squares in 2 ways, for example, as 188423710084 + 13718734129 = 434078^2 + 117127^2 .

It is a cyclic number.

It is not a de Polignac number, because 202142444213 - 2¹⁸ = 202142182069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202142444263) 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, 441358820 + ... + 441359277.

It is an arithmetic number, because the mean of its divisors is an integer number (50756290635).

Almost surely, 2^202142444213 is an apocalyptic number.

It is an amenable number.

202142444213 is a deficient number, since it is larger than the sum of its proper divisors (882718327).

202142444213 is an equidigital number, since it uses as much as digits as its factorization.

202142444213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882718326.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 202142444213 its reverse (312444241202), we get a palindrome (514586685415).

The spelling of 202142444213 in words is "two hundred two billion, one hundred forty-two million, four hundred forty-four thousand, two hundred thirteen".