202042442234 has 4 divisors (see below), whose sum is σ = 303063663354. Its totient is φ = 101021221116.

The previous prime is 202042442233. The next prime is 202042442279. The reversal of 202042442234 is 432244240202.

202042442234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 432244240202 = 2 ⋅216122120101.

It can be written as a sum of positive squares in only one way, i.e., 124399406209 + 77643036025 = 352703^2 + 278645^2 .

It is a super-2 number, since 2×202042442234² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202042442197 and 202042442206.

It is not an unprimeable number, because it can be changed into a prime (202042442233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50510610557 + ... + 50510610560.

Almost surely, 2^202042442234 is an apocalyptic number.

202042442234 is a deficient number, since it is larger than the sum of its proper divisors (101021221120).

202042442234 is a wasteful number, since it uses less digits than its factorization.

202042442234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101021221119.

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 202042442234 its reverse (432244240202), we get a palindrome (634286682436).

The spelling of 202042442234 in words is "two hundred two billion, forty-two million, four hundred forty-two thousand, two hundred thirty-four".