1240243431004 has 6 divisors (see below), whose sum is σ = 2170426004264. Its totient is φ = 620121715500.

The previous prime is 1240243430981. The next prime is 1240243431059. The reversal of 1240243431004 is 4001343420421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155030428872 + ... + 155030428879.

Almost surely, 2^{1240243431004} is an apocalyptic number.

It is an amenable number.

1240243431004 is a deficient number, since it is larger than the sum of its proper divisors (930182573260).

1240243431004 is a wasteful number, since it uses less digits than its factorization.

1240243431004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310060857755 (or 310060857753 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1240243431004 its reverse (4001343420421), we get a palindrome (5241586851425).

The spelling of 1240243431004 in words is "one trillion, two hundred forty billion, two hundred forty-three million, four hundred thirty-one thousand, four".