200420121203342 has 8 divisors (see below), whose sum is σ = 300635086953432. Its totient is φ = 100208425552200.

The previous prime is 200420121203273. The next prime is 200420121203369. The reversal of 200420121203342 is 243302121024002.

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

It is a super-2 number, since 2×200420121203342² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817371509 + ... + 817616672.

It is an arithmetic number, because the mean of its divisors is an integer number (37579385869179).

Almost surely, 2^{200420121203342} is an apocalyptic number.

200420121203342 is a deficient number, since it is larger than the sum of its proper divisors (100214965750090).

200420121203342 is a wasteful number, since it uses less digits than its factorization.

200420121203342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635049474.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 200420121203342 its reverse (243302121024002), we get a palindrome (443722242227344).

The spelling of 200420121203342 in words is "two hundred trillion, four hundred twenty billion, one hundred twenty-one million, two hundred three thousand, three hundred forty-two".