1440312323411 has 8 divisors (see below), whose sum is σ = 1554071371440. Its totient is φ = 1326976960032.

The previous prime is 1440312323377. The next prime is 1440312323503. The reversal of 1440312323411 is 1143232130441.

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 1440312323411 - 2⁶ = 1440312323347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1440312323111) 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, 105914096 + ... + 105927693.

It is an arithmetic number, because the mean of its divisors is an integer number (194258921430).

Almost surely, 2^{1440312323411} is an apocalyptic number.

1440312323411 is a deficient number, since it is larger than the sum of its proper divisors (113759048029).

1440312323411 is a wasteful number, since it uses less digits than its factorization.

1440312323411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211842325.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 1440312323411 its reverse (1143232130441), we get a palindrome (2583544453852).

The spelling of 1440312323411 in words is "one trillion, four hundred forty billion, three hundred twelve million, three hundred twenty-three thousand, four hundred eleven".