105142602655212 has 24 divisors (see below), whose sum is σ = 245340845458800. Its totient is φ = 35046376228416.

The previous prime is 105142602655187. The next prime is 105142602655213. The reversal of 105142602655212 is 212556206241501.

It is a super-2 number, since 2×105142602655212² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105142602655213) 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, 144370387 + ... + 145096842.

It is an arithmetic number, because the mean of its divisors is an integer number (10222535227450).

Almost surely, 2^{105142602655212} is an apocalyptic number.

105142602655212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

105142602655212 is an abundant number, since it is smaller than the sum of its proper divisors (140198242803588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105142602655212 is a wasteful number, since it uses less digits than its factorization.

105142602655212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289497505 (or 289497503 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 42.

Adding to 105142602655212 its reverse (212556206241501), we get a palindrome (317698808896713).

The spelling of 105142602655212 in words is "one hundred five trillion, one hundred forty-two billion, six hundred two million, six hundred fifty-five thousand, two hundred twelve".