105513323021 has 16 divisors (see below), whose sum is σ = 112571078400. Its totient is φ = 98706581568.

The previous prime is 105513322997. The next prime is 105513323023. The reversal of 105513323021 is 120323315501.

It is a cyclic number.

It is not a de Polignac number, because 105513323021 - 2²² = 105509128717 is a prime.

It is a super-2 number, since 2×105513323021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105513323023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50726 + ... + 462168.

It is an arithmetic number, because the mean of its divisors is an integer number (7035692400).

Almost surely, 2^105513323021 is an apocalyptic number.

It is an amenable number.

105513323021 is a deficient number, since it is larger than the sum of its proper divisors (7057755379).

105513323021 is a wasteful number, since it uses less digits than its factorization.

105513323021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411748.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 105513323021 its reverse (120323315501), we get a palindrome (225836638522).

The spelling of 105513323021 in words is "one hundred five billion, five hundred thirteen million, three hundred twenty-three thousand, twenty-one".