20203123004 has 6 divisors (see below), whose sum is σ = 35355465264. Its totient is φ = 10101561500.

The previous prime is 20203122991. The next prime is 20203123027. The reversal of 20203123004 is 40032130202.

It is a super-2 number, since 2×20203123004² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525390372 + ... + 2525390379.

It is an arithmetic number, because the mean of its divisors is an integer number (5892577544).

Almost surely, 2^20203123004 is an apocalyptic number.

It is an amenable number.

20203123004 is a deficient number, since it is larger than the sum of its proper divisors (15152342260).

20203123004 is a wasteful number, since it uses less digits than its factorization.

20203123004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050780755 (or 5050780753 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20203123004 its reverse (40032130202), we get a palindrome (60235253206).

The spelling of 20203123004 in words is "twenty billion, two hundred three million, one hundred twenty-three thousand, four".