20203123026 has 64 divisors (see below), whose sum is σ = 42598195200. Its totient is φ = 6379257600.

The previous prime is 20203122991. The next prime is 20203123027. The reversal of 20203123026 is 62032130202.

It is a junction number, because it is equal to n+sod(n) for n = 20203122993 and 20203123011.

It is not an unprimeable number, because it can be changed into a prime (20203123027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2640915 + ... + 2648553.

It is an arithmetic number, because the mean of its divisors is an integer number (665596800).

Almost surely, 2^20203123026 is an apocalyptic number.

20203123026 is an abundant number, since it is smaller than the sum of its proper divisors (22395072174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20203123026 is a wasteful number, since it uses less digits than its factorization.

20203123026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7975.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20203123026 its reverse (62032130202), we get a palindrome (82235253228).

The spelling of 20203123026 in words is "twenty billion, two hundred three million, one hundred twenty-three thousand, twenty-six".