1431311860391 has 8 divisors (see below), whose sum is σ = 1637530759200. Its totient is φ = 1225529405568.

The previous prime is 1431311860361. The next prime is 1431311860393. The reversal of 1431311860391 is 1930681131341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1431311860391 - 2¹⁸ = 1431311598247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431311860393) 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 7 ways as a sum of consecutive naturals, for example, 109103966 + ... + 109117083.

It is an arithmetic number, because the mean of its divisors is an integer number (204691344900).

Almost surely, 2^{1431311860391} is an apocalyptic number.

1431311860391 is a deficient number, since it is larger than the sum of its proper divisors (206218898809).

1431311860391 is an equidigital number, since it uses as much as digits as its factorization.

1431311860391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218221993.

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 1431311860391 in words is "one trillion, four hundred thirty-one billion, three hundred eleven million, eight hundred sixty thousand, three hundred ninety-one".