105121420415 has 8 divisors (see below), whose sum is σ = 137613495888. Its totient is φ = 76451942080.

The previous prime is 105121420379. The next prime is 105121420423. The reversal of 105121420415 is 514024121501.

It is a happy number.

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

It is not a de Polignac number, because 105121420415 - 2¹⁸ = 105121158271 is a prime.

It is a super-2 number, since 2×105121420415² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 955649222 + ... + 955649331.

It is an arithmetic number, because the mean of its divisors is an integer number (17201686986).

Almost surely, 2^105121420415 is an apocalyptic number.

105121420415 is a deficient number, since it is larger than the sum of its proper divisors (32492075473).

105121420415 is a wasteful number, since it uses less digits than its factorization.

105121420415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911298569.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 105121420415 its reverse (514024121501), we get a palindrome (619145541916).

The spelling of 105121420415 in words is "one hundred five billion, one hundred twenty-one million, four hundred twenty thousand, four hundred fifteen".