1031112144040 has 128 divisors (see below), whose sum is σ = 2565122152320. Its totient is φ = 369894784000.

The previous prime is 1031112144019. The next prime is 1031112144059. The reversal of 1031112144040 is 404412111301.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 25580382 + ... + 25620658.

It is an arithmetic number, because the mean of its divisors is an integer number (20040016815).

Almost surely, 2^{1031112144040} is an apocalyptic number.

1031112144040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031112144040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1282561076160).

1031112144040 is an abundant number, since it is smaller than the sum of its proper divisors (1534010008280).

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

1031112144040 is a wasteful number, since it uses less digits than its factorization.

1031112144040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41083 (or 41079 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1031112144040 its reverse (404412111301), we get a palindrome (1435524255341).

The spelling of 1031112144040 in words is "one trillion, thirty-one billion, one hundred twelve million, one hundred forty-four thousand, forty".