1245321335044 has 48 divisors (see below), whose sum is σ = 2210857084800. Its totient is φ = 613712816640.

The previous prime is 1245321335017. The next prime is 1245321335053. The reversal of 1245321335044 is 4405331235421.

It is a junction number, because it is equal to n+sod(n) for n = 1245321334994 and 1245321335012.

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 15 ways as a sum of consecutive naturals, for example, 275328567 + ... + 275333089.

It is an arithmetic number, because the mean of its divisors is an integer number (46059522600).

Almost surely, 2^{1245321335044} is an apocalyptic number.

It is an amenable number.

1245321335044 is a deficient number, since it is larger than the sum of its proper divisors (965535749756).

1245321335044 is a wasteful number, since it uses less digits than its factorization.

1245321335044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7900 (or 7898 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 1245321335044 in words is "one trillion, two hundred forty-five billion, three hundred twenty-one million, three hundred thirty-five thousand, forty-four".