1431043013431 has 4 divisors (see below), whose sum is σ = 1431392820264. Its totient is φ = 1430693206600.

The previous prime is 1431043013377. The next prime is 1431043013459. The reversal of 1431043013431 is 1343103401341.

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

It is a cyclic number.

It is not a de Polignac number, because 1431043013431 - 2¹⁷ = 1431042882359 is a prime.

It is a super-2 number, since 2×1431043013431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1431043013431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431043013531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174897280 + ... + 174905461.

It is an arithmetic number, because the mean of its divisors is an integer number (357848205066).

Almost surely, 2^{1431043013431} is an apocalyptic number.

1431043013431 is a deficient number, since it is larger than the sum of its proper divisors (349806833).

1431043013431 is an equidigital number, since it uses as much as digits as its factorization.

1431043013431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349806832.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 1431043013431 its reverse (1343103401341), we get a palindrome (2774146414772).

The spelling of 1431043013431 in words is "one trillion, four hundred thirty-one billion, forty-three million, thirteen thousand, four hundred thirty-one".