20403003004 has 12 divisors (see below), whose sum is σ = 35706362328. Its totient is φ = 10201185200.

The previous prime is 20403002993. The next prime is 20403003017. The reversal of 20403003004 is 40030030402.

It is a congruent number.

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, 124014 + ... + 237034.

It is an arithmetic number, because the mean of its divisors is an integer number (2975530194).

Almost surely, 2^20403003004 is an apocalyptic number.

It is an amenable number.

20403003004 is a deficient number, since it is larger than the sum of its proper divisors (15303359324).

20403003004 is a wasteful number, since it uses less digits than its factorization.

20403003004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158156 (or 158154 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 20403003004 its reverse (40030030402), we get a palindrome (60433033406).

The spelling of 20403003004 in words is "twenty billion, four hundred three million, three thousand, four".