4142121321440 has 48 divisors (see below), whose sum is σ = 9970398654048. Its totient is φ = 1625587232256.

The previous prime is 4142121321319. The next prime is 4142121321463. The reversal of 4142121321440 is 441231212414.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244220372 + ... + 244237331.

It is an arithmetic number, because the mean of its divisors is an integer number (207716638626).

Almost surely, 2^{4142121321440} is an apocalyptic number.

4142121321440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4142121321440 is an abundant number, since it is smaller than the sum of its proper divisors (5828277332608).

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

4142121321440 is a wasteful number, since it uses less digits than its factorization.

4142121321440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488457771 (or 488457763 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 4142121321440 its reverse (441231212414), we get a palindrome (4583352533854).

The spelling of 4142121321440 in words is "four trillion, one hundred forty-two billion, one hundred twenty-one million, three hundred twenty-one thousand, four hundred forty".