105200040421 has 8 divisors (see below), whose sum is σ = 124106960384. Its totient is φ = 87262706160.

The previous prime is 105200040391. The next prime is 105200040457. The reversal of 105200040421 is 124040002501.

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

It is not a de Polignac number, because 105200040421 - 2²⁵ = 105166485989 is a prime.

It is a super-2 number, since 2×105200040421² (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 (105200040221) 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, 242396190 + ... + 242396623.

It is an arithmetic number, because the mean of its divisors is an integer number (15513370048).

Almost surely, 2^105200040421 is an apocalyptic number.

It is an amenable number.

105200040421 is a deficient number, since it is larger than the sum of its proper divisors (18906919963).

105200040421 is an equidigital number, since it uses as much as digits as its factorization.

105200040421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484792851.

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 105200040421 its reverse (124040002501), we get a palindrome (229240042922).

The spelling of 105200040421 in words is "one hundred five billion, two hundred million, forty thousand, four hundred twenty-one".