10513921243 has 8 divisors (see below), whose sum is σ = 12047617280. Its totient is φ = 8988152040.

The previous prime is 10513921241. The next prime is 10513921273. The reversal of 10513921243 is 34212931501.

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

It is not a de Polignac number, because 10513921243 - 2¹ = 10513921241 is a prime.

It is a super-2 number, since 2×10513921243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10513921241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1978863 + ... + 1984168.

It is an arithmetic number, because the mean of its divisors is an integer number (1505952160).

Almost surely, 2^10513921243 is an apocalyptic number.

10513921243 is a deficient number, since it is larger than the sum of its proper divisors (1533696037).

10513921243 is an equidigital number, since it uses as much as digits as its factorization.

10513921243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3963417.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 10513921243 in words is "ten billion, five hundred thirteen million, nine hundred twenty-one thousand, two hundred forty-three".