10203122530 has 8 divisors (see below), whose sum is σ = 18365620572. Its totient is φ = 4081249008.

The previous prime is 10203122513. The next prime is 10203122533. The reversal of 10203122530 is 3522130201.

It can be written as a sum of positive squares in 2 ways, for example, as 10178590321 + 24532209 = 100889^2 + 4953^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 10203122498 and 10203122507.

It is not an unprimeable number, because it can be changed into a prime (10203122533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510156117 + ... + 510156136.

Almost surely, 2^10203122530 is an apocalyptic number.

10203122530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10203122530 is a deficient number, since it is larger than the sum of its proper divisors (8162498042).

10203122530 is a wasteful number, since it uses less digits than its factorization.

10203122530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020312260.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 10203122530 its reverse (3522130201), we get a palindrome (13725252731).

The spelling of 10203122530 in words is "ten billion, two hundred three million, one hundred twenty-two thousand, five hundred thirty".