1031130111000 has 256 divisors, whose sum is σ = 3527429368320. Its totient is φ = 248700480000.

The previous prime is 1031130110999. The next prime is 1031130111001. The reversal of 1031130111000 is 1110311301.

It is an interprime number because it is at equal distance from previous prime (1031130110999) and next prime (1031130111001).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031130111001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6421695 + ... + 6580305.

It is an arithmetic number, because the mean of its divisors is an integer number (13779020970).

Almost surely, 2^{1031130111000} is an apocalyptic number.

1031130111000 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 1031130111000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1763714684160).

1031130111000 is an abundant number, since it is smaller than the sum of its proper divisors (2496299257320).

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

1031130111000 is a wasteful number, since it uses less digits than its factorization.

1031130111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158843 (or 158829 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 12.

Adding to 1031130111000 its reverse (1110311301), we get a palindrome (1032240422301).

It can be divided in two parts, 10311301 and 11000, that added together give a palindrome (10322301).

The spelling of 1031130111000 in words is "one trillion, thirty-one billion, one hundred thirty million, one hundred eleven thousand".