1240531002042 has 64 divisors (see below), whose sum is σ = 2517588295680. Its totient is φ = 407476427904.

The previous prime is 1240531002037. The next prime is 1240531002071. The reversal of 1240531002042 is 2402001350421.

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 31 ways as a sum of consecutive naturals, for example, 67488009 + ... + 67506387.

It is an arithmetic number, because the mean of its divisors is an integer number (39337317120).

Almost surely, 2^{1240531002042} is an apocalyptic number.

1240531002042 is an abundant number, since it is smaller than the sum of its proper divisors (1277057293638).

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

1240531002042 is a wasteful number, since it uses less digits than its factorization.

1240531002042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19107.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 1240531002042 its reverse (2402001350421), we get a palindrome (3642532352463).

The spelling of 1240531002042 in words is "one trillion, two hundred forty billion, five hundred thirty-one million, two thousand, forty-two".