1003531401999 has 48 divisors (see below), whose sum is σ = 1686513990720. Its totient is φ = 563130247680.

The previous prime is 1003531401973. The next prime is 1003531402057. The reversal of 1003531401999 is 9991041353001.

1003531401999 is a `hidden beast` number, since 10 + 0 + 3 + 531 + 4 + 0 + 19 + 99 = 666.

It is not a de Polignac number, because 1003531401999 - 2¹⁶ = 1003531336463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003531401919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2159517 + ... + 2582745.

It is an arithmetic number, because the mean of its divisors is an integer number (35135708140).

Almost surely, 2^{1003531401999} is an apocalyptic number.

1003531401999 is a deficient number, since it is larger than the sum of its proper divisors (682982588721).

1003531401999 is a wasteful number, since it uses less digits than its factorization.

1003531401999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423920 (or 423917 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The spelling of 1003531401999 in words is "one trillion, three billion, five hundred thirty-one million, four hundred one thousand, nine hundred ninety-nine".