105051821403 has 8 divisors (see below), whose sum is σ = 140627140416. Its totient is φ = 69755525000.

The previous prime is 105051821393. The next prime is 105051821443. The reversal of 105051821403 is 304128150501.

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

It is a cyclic number.

It is not a de Polignac number, because 105051821403 - 2⁴ = 105051821387 is a prime.

It is a super-2 number, since 2×105051821403² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105051821443) 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, 69754773 + ... + 69756278.

It is an arithmetic number, because the mean of its divisors is an integer number (17578392552).

Almost surely, 2^105051821403 is an apocalyptic number.

105051821403 is a deficient number, since it is larger than the sum of its proper divisors (35575319013).

105051821403 is a wasteful number, since it uses less digits than its factorization.

105051821403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139511305.

The product of its (nonzero) digits is 4800, while the sum is 30.

Adding to 105051821403 its reverse (304128150501), we get a palindrome (409179971904).

The spelling of 105051821403 in words is "one hundred five billion, fifty-one million, eight hundred twenty-one thousand, four hundred three".