1031130110320 has 80 divisors (see below), whose sum is σ = 2473214204160. Its totient is φ = 399504863232.

The previous prime is 1031130110317. The next prime is 1031130110327. The reversal of 1031130110320 is 230110311301.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1031130110294 and 1031130110303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031130110327) 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, 120985 + ... + 1441144.

It is an arithmetic number, because the mean of its divisors is an integer number (30915177552).

Almost surely, 2^{1031130110320} is an apocalyptic number.

1031130110320 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 1031130110320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1236607102080).

1031130110320 is an abundant number, since it is smaller than the sum of its proper divisors (1442084093840).

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

1031130110320 is a wasteful number, since it uses less digits than its factorization.

1031130110320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562402 (or 1562396 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 1031130110320 its reverse (230110311301), we get a palindrome (1261240421621).

The spelling of 1031130110320 in words is "one trillion, thirty-one billion, one hundred thirty million, one hundred ten thousand, three hundred twenty".