20403223342 has 16 divisors (see below), whose sum is σ = 30803623200. Its totient is φ = 10135561248.

The previous prime is 20403223339. The next prime is 20403223349. The reversal of 20403223342 is 24332230402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20403223349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140583 + ... + 246109.

It is an arithmetic number, because the mean of its divisors is an integer number (1925226450).

Almost surely, 2^20403223342 is an apocalyptic number.

20403223342 is a deficient number, since it is larger than the sum of its proper divisors (10400399858).

20403223342 is a wasteful number, since it uses less digits than its factorization.

20403223342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106155.

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

Adding to 20403223342 its reverse (24332230402), we get a palindrome (44735453744).

The spelling of 20403223342 in words is "twenty billion, four hundred three million, two hundred twenty-three thousand, three hundred forty-two".