1440120443031 has 24 divisors (see below), whose sum is σ = 2082669024800. Its totient is φ = 958929212736.

The previous prime is 1440120442993. The next prime is 1440120443039. The reversal of 1440120443031 is 1303440210441.

1440120443031 is a `hidden beast` number, since 1 + 440 + 120 + 44 + 30 + 31 = 666.

It is not a de Polignac number, because 1440120443031 - 2¹³ = 1440120434839 is a prime.

It is a super-2 number, since 2×1440120443031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1440120442986 and 1440120443004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440120443039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41666145 + ... + 41700693.

Almost surely, 2^{1440120443031} is an apocalyptic number.

1440120443031 is a deficient number, since it is larger than the sum of its proper divisors (642548581769).

1440120443031 is a wasteful number, since it uses less digits than its factorization.

1440120443031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39975 (or 39972 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1440120443031 its reverse (1303440210441), we get a palindrome (2743560653472).

The spelling of 1440120443031 in words is "one trillion, four hundred forty billion, one hundred twenty million, four hundred forty-three thousand, thirty-one".