4021430134144 has 64 divisors (see below), whose sum is σ = 8025876348480. Its totient is φ = 2007095500800.

The previous prime is 4021430134129. The next prime is 4021430134177. The reversal of 4021430134144 is 4414310341204.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×4021430134144² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 196819609 + ... + 196840039.

It is an arithmetic number, because the mean of its divisors is an integer number (125404317945).

Almost surely, 2^{4021430134144} is an apocalyptic number.

It is an amenable number.

4021430134144 is a deficient number, since it is larger than the sum of its proper divisors (4004446214336).

4021430134144 is a wasteful number, since it uses less digits than its factorization.

4021430134144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23139 (or 23127 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 4021430134144 its reverse (4414310341204), we get a palindrome (8435740475348).

The spelling of 4021430134144 in words is "four trillion, twenty-one billion, four hundred thirty million, one hundred thirty-four thousand, one hundred forty-four".