1003423430040 has 128 divisors (see below), whose sum is σ = 3035939512320. Its totient is φ = 265301504000.

The previous prime is 1003423430039. The next prime is 1003423430071. The reversal of 1003423430040 is 400343243001.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18065992 + ... + 18121448.

It is an arithmetic number, because the mean of its divisors is an integer number (23718277440).

Almost surely, 2^{1003423430040} is an apocalyptic number.

1003423430040 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 1003423430040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1517969756160).

1003423430040 is an abundant number, since it is smaller than the sum of its proper divisors (2032516082280).

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

1003423430040 is a wasteful number, since it uses less digits than its factorization.

1003423430040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56753 (or 56749 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 1003423430040 its reverse (400343243001), we get a palindrome (1403766673041).

The spelling of 1003423430040 in words is "one trillion, three billion, four hundred twenty-three million, four hundred thirty thousand, forty".