20223303442 has 8 divisors (see below), whose sum is σ = 30750502716. Its totient is φ = 9973135872.

The previous prime is 20223303433. The next prime is 20223303487. The reversal of 20223303442 is 24430332202.

It can be written as a sum of positive squares in 2 ways, for example, as 20078606601 + 144696841 = 141699^2 + 12029^2 .

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, 69257743 + ... + 69258034.

Almost surely, 2^20223303442 is an apocalyptic number.

20223303442 is a deficient number, since it is larger than the sum of its proper divisors (10527199274).

20223303442 is a wasteful number, since it uses less digits than its factorization.

20223303442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138515852.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 20223303442 its reverse (24430332202), we get a palindrome (44653635644).

The spelling of 20223303442 in words is "twenty billion, two hundred twenty-three million, three hundred three thousand, four hundred forty-two".