10342321520 has 20 divisors (see below), whose sum is σ = 24045897720. Its totient is φ = 4136928576.

The previous prime is 10342321499. The next prime is 10342321537. The reversal of 10342321520 is 2512324301.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×10342321520² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64639430 + ... + 64639589.

It is an arithmetic number, because the mean of its divisors is an integer number (1202294886).

Almost surely, 2^10342321520 is an apocalyptic number.

10342321520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10342321520 is an abundant number, since it is smaller than the sum of its proper divisors (13703576200).

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

10342321520 is a wasteful number, since it uses less digits than its factorization.

10342321520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129279032 (or 129279026 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 10342321520 its reverse (2512324301), we get a palindrome (12854645821).

The spelling of 10342321520 in words is "ten billion, three hundred forty-two million, three hundred twenty-one thousand, five hundred twenty".