4021431320032 has 24 divisors (see below), whose sum is σ = 9048220470576. Its totient is φ = 1723470565632.

The previous prime is 4021431320029. The next prime is 4021431320041. The reversal of 4021431320032 is 2300231341204.

It is a junction number, because it is equal to n+sod(n) for n = 4021431319979 and 4021431320006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8976408973 + ... + 8976409420.

It is an arithmetic number, because the mean of its divisors is an integer number (377009186274).

Almost surely, 2^{4021431320032} is an apocalyptic number.

It is an amenable number.

4021431320032 is an abundant number, since it is smaller than the sum of its proper divisors (5026789150544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4021431320032 is a wasteful number, since it uses less digits than its factorization.

4021431320032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17952818410 (or 17952818402 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 4021431320032 its reverse (2300231341204), we get a palindrome (6321662661236).

The spelling of 4021431320032 in words is "four trillion, twenty-one billion, four hundred thirty-one million, three hundred twenty thousand, thirty-two".