1431142320021 has 16 divisors (see below), whose sum is σ = 1969897026048. Its totient is φ = 923246020800.

The previous prime is 1431142320007. The next prime is 1431142320071. The reversal of 1431142320021 is 1200232411341.

It is not a de Polignac number, because 1431142320021 - 2⁵ = 1431142319989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1431142319973 and 1431142320000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431142320071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 622251 + ... + 1802631.

It is an arithmetic number, because the mean of its divisors is an integer number (123118564128).

Almost surely, 2^{1431142320021} is an apocalyptic number.

It is an amenable number.

1431142320021 is a deficient number, since it is larger than the sum of its proper divisors (538754706027).

1431142320021 is a wasteful number, since it uses less digits than its factorization.

1431142320021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193452.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1431142320021 its reverse (1200232411341), we get a palindrome (2631374731362).

The spelling of 1431142320021 in words is "one trillion, four hundred thirty-one billion, one hundred forty-two million, three hundred twenty thousand, twenty-one".