10521022311543 has 32 divisors (see below), whose sum is σ = 14777423619840. Its totient is φ = 6639873557760.

The previous prime is 10521022311533. The next prime is 10521022311551. The reversal of 10521022311543 is 34511322012501.

It is a happy number.

It is not a de Polignac number, because 10521022311543 - 2¹⁸ = 10521022049399 is a prime.

It is a super-2 number, since 2×10521022311543² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10521022311543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10521022311523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 595846771 + ... + 595864427.

It is an arithmetic number, because the mean of its divisors is an integer number (461794488120).

Almost surely, 2^{10521022311543} is an apocalyptic number.

10521022311543 is a deficient number, since it is larger than the sum of its proper divisors (4256401308297).

10521022311543 is a wasteful number, since it uses less digits than its factorization.

10521022311543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24927.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 10521022311543 in words is "ten trillion, five hundred twenty-one billion, twenty-two million, three hundred eleven thousand, five hundred forty-three".