10531213125 has 80 divisors (see below), whose sum is σ = 19557489600. Its totient is φ = 5007744000.

The previous prime is 10531213123. The next prime is 10531213141. The reversal of 10531213125 is 52131213501.

It is not a de Polignac number, because 10531213125 - 2¹ = 10531213123 is a prime.

It is a super-2 number, since 2×10531213125² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10531213095 and 10531213104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10531213123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 596931 + ... + 614319.

It is an arithmetic number, because the mean of its divisors is an integer number (244468620).

Almost surely, 2^10531213125 is an apocalyptic number.

10531213125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10531213125 is a deficient number, since it is larger than the sum of its proper divisors (9026276475).

10531213125 is a wasteful number, since it uses less digits than its factorization.

10531213125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17448 (or 17433 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 10531213125 its reverse (52131213501), we get a palindrome (62662426626).

The spelling of 10531213125 in words is "ten billion, five hundred thirty-one million, two hundred thirteen thousand, one hundred twenty-five".