10203344538 has 16 divisors (see below), whose sum is σ = 20694108096. Its totient is φ = 3353211680.

The previous prime is 10203344521. The next prime is 10203344561. The reversal of 10203344538 is 83544330201.

It is a super-2 number, since 2×10203344538² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10203344499 and 10203344508.

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, 11975331 + ... + 11976182.

It is an arithmetic number, because the mean of its divisors is an integer number (1293381756).

Almost surely, 2^10203344538 is an apocalyptic number.

10203344538 is an abundant number, since it is smaller than the sum of its proper divisors (10490763558).

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

10203344538 is a wasteful number, since it uses less digits than its factorization.

10203344538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23951589.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 10203344538 its reverse (83544330201), we get a palindrome (93747674739).

The spelling of 10203344538 in words is "ten billion, two hundred three million, three hundred forty-four thousand, five hundred thirty-eight".