1431204124021 has 24 divisors (see below), whose sum is σ = 1686180347520. Its totient is φ = 1211048459712.

The previous prime is 1431204124013. The next prime is 1431204124109. The reversal of 1431204124021 is 1204214021341.

It is not a de Polignac number, because 1431204124021 - 2³ = 1431204124013 is a prime.

It is a super-2 number, since 2×1431204124021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431204128021) 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 23 ways as a sum of consecutive naturals, for example, 33125785 + ... + 33168961.

It is an arithmetic number, because the mean of its divisors is an integer number (70257514480).

Almost surely, 2^{1431204124021} is an apocalyptic number.

It is an amenable number.

1431204124021 is a deficient number, since it is larger than the sum of its proper divisors (254976223499).

1431204124021 is an equidigital number, since it uses as much as digits as its factorization.

1431204124021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51833 (or 51826 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1431204124021 its reverse (1204214021341), we get a palindrome (2635418145362).

The spelling of 1431204124021 in words is "one trillion, four hundred thirty-one billion, two hundred four million, one hundred twenty-four thousand, twenty-one".