105402530134221 has 16 divisors (see below), whose sum is σ = 141439752427200. Its totient is φ = 69817079761920.

The previous prime is 105402530134207. The next prime is 105402530134249. The reversal of 105402530134221 is 122431035204501.

It is not a de Polignac number, because 105402530134221 - 2⁷ = 105402530134093 is a prime.

It is a super-2 number, since 2×105402530134221² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105402530134621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29446996 + ... + 32831853.

It is an arithmetic number, because the mean of its divisors is an integer number (8839984526700).

Almost surely, 2^{105402530134221} is an apocalyptic number.

It is an amenable number.

105402530134221 is a deficient number, since it is larger than the sum of its proper divisors (36037222292979).

105402530134221 is a wasteful number, since it uses less digits than its factorization.

105402530134221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62282476.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 105402530134221 its reverse (122431035204501), we get a palindrome (227833565338722).

The spelling of 105402530134221 in words is "one hundred five trillion, four hundred two billion, five hundred thirty million, one hundred thirty-four thousand, two hundred twenty-one".