1240545403312 has 20 divisors (see below), whose sum is σ = 2403817102456. Its totient is φ = 620205505920.

The previous prime is 1240545403283. The next prime is 1240545403313. The reversal of 1240545403312 is 2133045450421.

It is not an unprimeable number, because it can be changed into a prime (1240545403313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4047258 + ... + 4342969.

Almost surely, 2^{1240545403312} is an apocalyptic number.

It is an amenable number.

1240545403312 is a deficient number, since it is larger than the sum of its proper divisors (1163271699144).

1240545403312 is an equidigital number, since it uses as much as digits as its factorization.

1240545403312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8399476 (or 8399470 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 1240545403312 in words is "one trillion, two hundred forty billion, five hundred forty-five million, four hundred three thousand, three hundred twelve".