105120523342421 has 8 divisors (see below), whose sum is σ = 116143391519424. Its totient is φ = 94635356052160.

The previous prime is 105120523342411. The next prime is 105120523342459. The reversal of 105120523342421 is 124243325021501.

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

It is not a de Polignac number, because 105120523342421 - 2¹⁰ = 105120523341397 is a prime.

It is a super-2 number, since 2×105120523342421² (a number of 29 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 (105120523342411) 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, 134425221275 + ... + 134425222056.

It is an arithmetic number, because the mean of its divisors is an integer number (14517923939928).

Almost surely, 2^{105120523342421} is an apocalyptic number.

It is an amenable number.

105120523342421 is a deficient number, since it is larger than the sum of its proper divisors (11022868177003).

105120523342421 is a wasteful number, since it uses less digits than its factorization.

105120523342421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268850443371.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 105120523342421 its reverse (124243325021501), we get a palindrome (229363848363922).

The spelling of 105120523342421 in words is "one hundred five trillion, one hundred twenty billion, five hundred twenty-three million, three hundred forty-two thousand, four hundred twenty-one".