1431031344653 has 4 divisors (see below), whose sum is σ = 1440146194140. Its totient is φ = 1421916495168.

The previous prime is 1431031344643. The next prime is 1431031344679. The reversal of 1431031344653 is 3564431301341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 718700408644 + 712330936009 = 847762^2 + 843997^2 .

It is a cyclic number.

It is not a de Polignac number, because 1431031344653 - 2²² = 1431027150349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431031344643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4557424508 + ... + 4557424821.

It is an arithmetic number, because the mean of its divisors is an integer number (360036548535).

Almost surely, 2^{1431031344653} is an apocalyptic number.

It is an amenable number.

1431031344653 is a deficient number, since it is larger than the sum of its proper divisors (9114849487).

1431031344653 is an equidigital number, since it uses as much as digits as its factorization.

1431031344653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9114849486.

The product of its (nonzero) digits is 155520, while the sum is 38.

Adding to 1431031344653 its reverse (3564431301341), we get a palindrome (4995462645994).

The spelling of 1431031344653 in words is "one trillion, four hundred thirty-one billion, thirty-one million, three hundred forty-four thousand, six hundred fifty-three".