202120032442 has 8 divisors (see below), whose sum is σ = 304136453556. Its totient is φ = 100741214592.

The previous prime is 202120032427. The next prime is 202120032487. The reversal of 202120032442 is 244230021202.

It can be written as a sum of positive squares in 2 ways, for example, as 137084322001 + 65035710441 = 370249^2 + 255021^2 .

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, 159400023 + ... + 159401290.

Almost surely, 2^202120032442 is an apocalyptic number.

202120032442 is a deficient number, since it is larger than the sum of its proper divisors (102016421114).

202120032442 is a wasteful number, since it uses less digits than its factorization.

202120032442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318801632.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 202120032442 its reverse (244230021202), we get a palindrome (446350053644).

The spelling of 202120032442 in words is "two hundred two billion, one hundred twenty million, thirty-two thousand, four hundred forty-two".