1011143042440 has 16 divisors (see below), whose sum is σ = 2275071845580. Its totient is φ = 404457216960.

The previous prime is 1011143042431. The next prime is 1011143042519. The reversal of 1011143042440 is 442403411101.

1011143042440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 953735840836 + 57407201604 = 976594^2 + 239598^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12639287991 + ... + 12639288070.

Almost surely, 2^{1011143042440} is an apocalyptic number.

1011143042440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011143042440 is an abundant number, since it is smaller than the sum of its proper divisors (1263928803140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011143042440 is a wasteful number, since it uses less digits than its factorization.

1011143042440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25278576072 (or 25278576068 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1011143042440 its reverse (442403411101), we get a palindrome (1453546453541).

The spelling of 1011143042440 in words is "one trillion, eleven billion, one hundred forty-three million, forty-two thousand, four hundred forty".