1240444311133 has 8 divisors (see below), whose sum is σ = 1250405972640. Its totient is φ = 1230490113840.

The previous prime is 1240444311131. The next prime is 1240444311149. The reversal of 1240444311133 is 3311134440421.

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 1240444311133 - 2¹ = 1240444311131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1240444311095 and 1240444311104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240444311131) 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, 1532110 + ... + 2197327.

It is an arithmetic number, because the mean of its divisors is an integer number (156300746580).

Almost surely, 2^{1240444311133} is an apocalyptic number.

It is an amenable number.

1240444311133 is a deficient number, since it is larger than the sum of its proper divisors (9961661507).

1240444311133 is a wasteful number, since it uses less digits than its factorization.

1240444311133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732107.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 1240444311133 its reverse (3311134440421), we get a palindrome (4551578751554).

The spelling of 1240444311133 in words is "one trillion, two hundred forty billion, four hundred forty-four million, three hundred eleven thousand, one hundred thirty-three".