105343424621 has 4 divisors (see below), whose sum is σ = 106612622592. Its totient is φ = 104074226652.

The previous prime is 105343424581. The next prime is 105343424653. The reversal of 105343424621 is 126424343501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 105343424621 - 2²² = 105339230317 is a prime.

It is a super-2 number, since 2×105343424621² (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 (105343424671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634598861 + ... + 634599026.

It is an arithmetic number, because the mean of its divisors is an integer number (26653155648).

Almost surely, 2^105343424621 is an apocalyptic number.

It is an amenable number.

105343424621 is a deficient number, since it is larger than the sum of its proper divisors (1269197971).

105343424621 is an equidigital number, since it uses as much as digits as its factorization.

105343424621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269197970.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 105343424621 in words is "one hundred five billion, three hundred forty-three million, four hundred twenty-four thousand, six hundred twenty-one".