1431042021145 has 16 divisors (see below), whose sum is σ = 1880487176832. Its totient is φ = 1036800568960.

The previous prime is 1431042021083. The next prime is 1431042021151. The reversal of 1431042021145 is 5411202401341.

It is a happy number.

It is not a de Polignac number, because 1431042021145 - 2²⁷ = 1430907803417 is a prime.

It is a super-2 number, since 2×1431042021145² (a number of 25 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 49451212 + ... + 49480141.

It is an arithmetic number, because the mean of its divisors is an integer number (117530448552).

Almost surely, 2^{1431042021145} is an apocalyptic number.

It is an amenable number.

1431042021145 is a deficient number, since it is larger than the sum of its proper divisors (449445155687).

1431042021145 is a wasteful number, since it uses less digits than its factorization.

1431042021145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98931632.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 1431042021145 its reverse (5411202401341), we get a palindrome (6842244422486).

The spelling of 1431042021145 in words is "one trillion, four hundred thirty-one billion, forty-two million, twenty-one thousand, one hundred forty-five".