1240031406351 has 16 divisors (see below), whose sum is σ = 1750804754688. Its totient is φ = 777982396800.

The previous prime is 1240031406347. The next prime is 1240031406373. The reversal of 1240031406351 is 1536041300421.

It is not a de Polignac number, because 1240031406351 - 2² = 1240031406347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240031406391) by changing a digit.

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, 669835 + ... + 1711356.

It is an arithmetic number, because the mean of its divisors is an integer number (109425297168).

Almost surely, 2^{1240031406351} is an apocalyptic number.

1240031406351 is a deficient number, since it is larger than the sum of its proper divisors (510773348337).

1240031406351 is a wasteful number, since it uses less digits than its factorization.

1240031406351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391422.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 1240031406351 its reverse (1536041300421), we get a palindrome (2776072706772).

The spelling of 1240031406351 in words is "one trillion, two hundred forty billion, thirty-one million, four hundred six thousand, three hundred fifty-one".