1031232103440 has 160 divisors (see below), whose sum is σ = 3985645188096. Its totient is φ = 214281991680.

The previous prime is 1031232103427. The next prime is 1031232103469. The reversal of 1031232103440 is 443012321301.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1031232103440.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27882822 + ... + 27919781.

Almost surely, 2^{1031232103440} is an apocalyptic number.

1031232103440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031232103440 is an abundant number, since it is smaller than the sum of its proper divisors (2954413084656).

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

1031232103440 is a wasteful number, since it uses less digits than its factorization.

1031232103440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55802637 (or 55802631 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1031232103440 its reverse (443012321301), we get a palindrome (1474244424741).

The spelling of 1031232103440 in words is "one trillion, thirty-one billion, two hundred thirty-two million, one hundred three thousand, four hundred forty".