1145421423112 has 16 divisors (see below), whose sum is σ = 2179719873360. Its totient is φ = 564162790224.

The previous prime is 1145421423103. The next prime is 1145421423161. The reversal of 1145421423112 is 2113241245411.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1068489598 + ... + 1068490669.

It is an arithmetic number, because the mean of its divisors is an integer number (136232492085).

Almost surely, 2^{1145421423112} is an apocalyptic number.

It is an amenable number.

1145421423112 is a deficient number, since it is larger than the sum of its proper divisors (1034298450248).

1145421423112 is a wasteful number, since it uses less digits than its factorization.

1145421423112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136980340 (or 2136980336 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

Adding to 1145421423112 its reverse (2113241245411), we get a palindrome (3258662668523).

The spelling of 1145421423112 in words is "one trillion, one hundred forty-five billion, four hundred twenty-one million, four hundred twenty-three thousand, one hundred twelve".