1421334441144 has 24 divisors (see below), whose sum is σ = 3849447444960. Its totient is φ = 473778147024.

The previous prime is 1421334441139. The next prime is 1421334441157. The reversal of 1421334441144 is 4411444331241.

1421334441144 is a `hidden beast` number, since 1 + 42 + 1 + 3 + 34 + 441 + 144 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1421334441099 and 1421334441108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9870377992 + ... + 9870378135.

It is an arithmetic number, because the mean of its divisors is an integer number (160393643540).

Almost surely, 2^{1421334441144} is an apocalyptic number.

It is an amenable number.

1421334441144 is an abundant number, since it is smaller than the sum of its proper divisors (2428113003816).

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

1421334441144 is a wasteful number, since it uses less digits than its factorization.

1421334441144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19740756139 (or 19740756132 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

Adding to 1421334441144 its reverse (4411444331241), we get a palindrome (5832778772385).

The spelling of 1421334441144 in words is "one trillion, four hundred twenty-one billion, three hundred thirty-four million, four hundred forty-one thousand, one hundred forty-four".