10503122021 has 8 divisors (see below), whose sum is σ = 12248539200. Its totient is φ = 9002675724.

The previous prime is 10503122011. The next prime is 10503122027. The reversal of 10503122021 is 12022130501.

It is a happy number.

It is not a de Polignac number, because 10503122021 - 2¹⁴ = 10503105637 is a prime.

It is a super-2 number, since 2×10503122021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10503122027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15310331 + ... + 15311016.

It is an arithmetic number, because the mean of its divisors is an integer number (1531067400).

Almost surely, 2^10503122021 is an apocalyptic number.

It is an amenable number.

10503122021 is a deficient number, since it is larger than the sum of its proper divisors (1745417179).

10503122021 is an frugal number, since it uses more digits than its factorization.

10503122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30621368 (or 30621354 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 10503122021 its reverse (12022130501), we get a palindrome (22525252522).

The spelling of 10503122021 in words is "ten billion, five hundred three million, one hundred twenty-two thousand, twenty-one".