203120211442 has 8 divisors (see below), whose sum is σ = 304706144556. Its totient is φ = 101551496592.

The previous prime is 203120211403. The next prime is 203120211533. The reversal of 203120211442 is 244112021302.

It can be written as a sum of positive squares in 2 ways, for example, as 194753633481 + 8366577961 = 441309^2 + 91469^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4275033 + ... + 4322284.

Almost surely, 2^203120211442 is an apocalyptic number.

203120211442 is a deficient number, since it is larger than the sum of its proper divisors (101585933114).

203120211442 is a wasteful number, since it uses less digits than its factorization.

203120211442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8609132.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 203120211442 its reverse (244112021302), we get a palindrome (447232232744).

The spelling of 203120211442 in words is "two hundred three billion, one hundred twenty million, two hundred eleven thousand, four hundred forty-two".