1141344403420 has 72 divisors (see below), whose sum is σ = 2599802596944. Its totient is φ = 420700819968.

The previous prime is 1141344403379. The next prime is 1141344403421. The reversal of 1141344403420 is 243044431411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141344403421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1696432 + ... + 2271688.

It is an arithmetic number, because the mean of its divisors is an integer number (36108369402).

Almost surely, 2^{1141344403420} is an apocalyptic number.

1141344403420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1141344403420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1299901298472).

1141344403420 is an abundant number, since it is smaller than the sum of its proper divisors (1458458193524).

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

1141344403420 is a wasteful number, since it uses less digits than its factorization.

1141344403420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575879 (or 575864 counting only the distinct ones).

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

Adding to 1141344403420 its reverse (243044431411), we get a palindrome (1384388834831).

The spelling of 1141344403420 in words is "one trillion, one hundred forty-one billion, three hundred forty-four million, four hundred three thousand, four hundred twenty".