1325631044403 has 40 divisors (see below), whose sum is σ = 1993935042000. Its totient is φ = 877655034432.

The previous prime is 1325631044399. The next prime is 1325631044477. The reversal of 1325631044403 is 3044401365231.

1325631044403 is a `hidden beast` number, since 1 + 3 + 2 + 563 + 10 + 44 + 40 + 3 = 666.

It is not a de Polignac number, because 1325631044403 - 2² = 1325631044399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1325631040403) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 119755153 + ... + 119766221.

It is an arithmetic number, because the mean of its divisors is an integer number (49848376050).

Almost surely, 2^{1325631044403} is an apocalyptic number.

1325631044403 is a deficient number, since it is larger than the sum of its proper divisors (668303997597).

1325631044403 is a wasteful number, since it uses less digits than its factorization.

1325631044403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21153 (or 21144 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 1325631044403 in words is "one trillion, three hundred twenty-five billion, six hundred thirty-one million, forty-four thousand, four hundred three".