20603323052 has 24 divisors (see below), whose sum is σ = 38864843136. Its totient is φ = 9500531328.

The previous prime is 20603323033. The next prime is 20603323063. The reversal of 20603323052 is 25032330602.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123548 + ... + 237635.

It is an arithmetic number, because the mean of its divisors is an integer number (1619368464).

Almost surely, 2^20603323052 is an apocalyptic number.

It is an amenable number.

20603323052 is a deficient number, since it is larger than the sum of its proper divisors (18261520084).

20603323052 is a wasteful number, since it uses less digits than its factorization.

20603323052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362297 (or 362295 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 20603323052 its reverse (25032330602), we get a palindrome (45635653654).

The spelling of 20603323052 in words is "twenty billion, six hundred three million, three hundred twenty-three thousand, fifty-two".