4021400323144 has 16 divisors (see below), whose sum is σ = 7575860801520. Its totient is φ = 2001170776080.

The previous prime is 4021400323133. The next prime is 4021400323181. The reversal of 4021400323144 is 4413230041204.

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, 1191171394 + ... + 1191174769.

It is an arithmetic number, because the mean of its divisors is an integer number (473491300095).

Almost surely, 2^{4021400323144} is an apocalyptic number.

It is an amenable number.

4021400323144 is a deficient number, since it is larger than the sum of its proper divisors (3554460478376).

4021400323144 is a wasteful number, since it uses less digits than its factorization.

4021400323144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382346380 (or 2382346376 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 4021400323144 its reverse (4413230041204), we get a palindrome (8434630364348).

The spelling of 4021400323144 in words is "four trillion, twenty-one billion, four hundred million, three hundred twenty-three thousand, one hundred forty-four".