10521340434 has 48 divisors (see below), whose sum is σ = 24905353824. Its totient is φ = 3183576000.

The previous prime is 10521340367. The next prime is 10521340457. The reversal of 10521340434 is 43404312501.

It is a happy number.

10521340434 is a `hidden beast` number, since 10 + 5 + 213 + 4 + 0 + 434 = 666.

10521340434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10521340434² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10521340398 and 10521340407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96334 + ... + 174134.

It is an arithmetic number, because the mean of its divisors is an integer number (518861538).

Almost surely, 2^10521340434 is an apocalyptic number.

10521340434 is an abundant number, since it is smaller than the sum of its proper divisors (14384013390).

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

10521340434 is a wasteful number, since it uses less digits than its factorization.

10521340434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78503 (or 78500 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 10521340434 its reverse (43404312501), we get a palindrome (53925652935).

The spelling of 10521340434 in words is "ten billion, five hundred twenty-one million, three hundred forty thousand, four hundred thirty-four".