1431388083421 has 16 divisors (see below), whose sum is σ = 1463626137600. Its totient is φ = 1399548150000.

The previous prime is 1431388083403. The next prime is 1431388083427. The reversal of 1431388083421 is 1243808831341.

It is a cyclic number.

It is not a de Polignac number, because 1431388083421 - 2¹¹ = 1431388081373 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 (1431388083427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4812796 + ... + 5101546.

It is an arithmetic number, because the mean of its divisors is an integer number (91476633600).

Almost surely, 2^{1431388083421} is an apocalyptic number.

It is an amenable number.

1431388083421 is a deficient number, since it is larger than the sum of its proper divisors (32238054179).

1431388083421 is a wasteful number, since it uses less digits than its factorization.

1431388083421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289440.

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 1431388083421 in words is "one trillion, four hundred thirty-one billion, three hundred eighty-eight million, eighty-three thousand, four hundred twenty-one".