1005251323404 has 24 divisors (see below), whose sum is σ = 2345622008688. Its totient is φ = 335078690560.

The previous prime is 1005251323393. The next prime is 1005251323421. The reversal of 1005251323404 is 4043231525001.

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 7 ways as a sum of consecutive naturals, for example, 236224 + ... + 1437464.

It is an arithmetic number, because the mean of its divisors is an integer number (97734250362).

Almost surely, 2^{1005251323404} is an apocalyptic number.

It is an amenable number.

1005251323404 is an abundant number, since it is smaller than the sum of its proper divisors (1340370685284).

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

1005251323404 is a wasteful number, since it uses less digits than its factorization.

1005251323404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270985 (or 1270983 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 1005251323404 its reverse (4043231525001), we get a palindrome (5048482848405).

The spelling of 1005251323404 in words is "one trillion, five billion, two hundred fifty-one million, three hundred twenty-three thousand, four hundred four".