1124431231420 has 96 divisors (see below), whose sum is σ = 2730760905600. Its totient is φ = 380935593984.

The previous prime is 1124431231393. The next prime is 1124431231423. The reversal of 1124431231420 is 241321344211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1124431231423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19321326 + ... + 19379434.

It is an arithmetic number, because the mean of its divisors is an integer number (28445426100).

Almost surely, 2^{1124431231420} is an apocalyptic number.

1124431231420 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 1124431231420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1365380452800).

1124431231420 is an abundant number, since it is smaller than the sum of its proper divisors (1606329674180).

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

1124431231420 is a wasteful number, since it uses less digits than its factorization.

1124431231420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59767 (or 59765 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1124431231420 its reverse (241321344211), we get a palindrome (1365752575631).

The spelling of 1124431231420 in words is "one trillion, one hundred twenty-four billion, four hundred thirty-one million, two hundred thirty-one thousand, four hundred twenty".