1240204311401 has 4 divisors (see below), whose sum is σ = 1352950157904. Its totient is φ = 1127458464900.

The previous prime is 1240204311389. The next prime is 1240204311439. The reversal of 1240204311401 is 1041134020421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1240204311401 - 2³⁰ = 1239130569577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240204313401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56372923235 + ... + 56372923256.

It is an arithmetic number, because the mean of its divisors is an integer number (338237539476).

Almost surely, 2^{1240204311401} is an apocalyptic number.

1240204311401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1240204311401 is a deficient number, since it is larger than the sum of its proper divisors (112745846503).

1240204311401 is a wasteful number, since it uses less digits than its factorization.

1240204311401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112745846502.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1240204311401 its reverse (1041134020421), we get a palindrome (2281338331822).

The spelling of 1240204311401 in words is "one trillion, two hundred forty billion, two hundred four million, three hundred eleven thousand, four hundred one".