10521200473 has 12 divisors (see below), whose sum is σ = 12301085412. Its totient is φ = 8972386080.

The previous prime is 10521200413. The next prime is 10521200479. The reversal of 10521200473 is 37400212501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8856315664 + 1664884809 = 94108^2 + 40803^2 .

It is not a de Polignac number, because 10521200473 - 2⁹ = 10521199961 is a prime.

It is a super-2 number, since 2×10521200473² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10521200479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 535318 + ... + 554623.

It is an arithmetic number, because the mean of its divisors is an integer number (1025090451).

Almost surely, 2^10521200473 is an apocalyptic number.

It is an amenable number.

10521200473 is a deficient number, since it is larger than the sum of its proper divisors (1779884939).

10521200473 is a wasteful number, since it uses less digits than its factorization.

10521200473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090152 (or 1090145 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

Adding to 10521200473 its reverse (37400212501), we get a palindrome (47921412974).

The spelling of 10521200473 in words is "ten billion, five hundred twenty-one million, two hundred thousand, four hundred seventy-three".