1440204412123 has 16 divisors (see below), whose sum is σ = 1520125286400. Its totient is φ = 1360698449760.

The previous prime is 1440204412079. The next prime is 1440204412139. The reversal of 1440204412123 is 3212144020441.

It is a cyclic number.

It is not a de Polignac number, because 1440204412123 - 2¹³ = 1440204403931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1440204412091 and 1440204412100.

It is not an unprimeable number, because it can be changed into a prime (1440204412193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18807453 + ... + 18883873.

It is an arithmetic number, because the mean of its divisors is an integer number (95007830400).

Almost surely, 2^{1440204412123} is an apocalyptic number.

1440204412123 is a deficient number, since it is larger than the sum of its proper divisors (79920874277).

1440204412123 is a wasteful number, since it uses less digits than its factorization.

1440204412123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79122.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 1440204412123 its reverse (3212144020441), we get a palindrome (4652348432564).

The spelling of 1440204412123 in words is "one trillion, four hundred forty billion, two hundred four million, four hundred twelve thousand, one hundred twenty-three".