1240350257051 has 8 divisors (see below), whose sum is σ = 1284170150880. Its totient is φ = 1196600309632.

The previous prime is 1240350257033. The next prime is 1240350257099. The reversal of 1240350257051 is 1507520530421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1240350257051 - 2¹⁸ = 1240349994907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240350257021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17450510 + ... + 17521443.

It is an arithmetic number, because the mean of its divisors is an integer number (160521268860).

Almost surely, 2^{1240350257051} is an apocalyptic number.

1240350257051 is a deficient number, since it is larger than the sum of its proper divisors (43819893829).

1240350257051 is a wasteful number, since it uses less digits than its factorization.

1240350257051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34973205.

The product of its (nonzero) digits is 42000, while the sum is 35.

Adding to 1240350257051 its reverse (1507520530421), we get a palindrome (2747870787472).

The spelling of 1240350257051 in words is "one trillion, two hundred forty billion, three hundred fifty million, two hundred fifty-seven thousand, fifty-one".