1001231111310 has 64 divisors (see below), whose sum is σ = 2440778400000. Its totient is φ = 262798728192.

The previous prime is 1001231111297. The next prime is 1001231111371. The reversal of 1001231111310 is 131111321001.

It is a super-2 number, since 2×1001231111310² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1001231111310.

It is a congruent number.

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, 2311081 + ... + 2709899.

It is an arithmetic number, because the mean of its divisors is an integer number (38137162500).

Almost surely, 2^{1001231111310} is an apocalyptic number.

1001231111310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001231111310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1220389200000).

1001231111310 is an abundant number, since it is smaller than the sum of its proper divisors (1439547288690).

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

1001231111310 is a wasteful number, since it uses less digits than its factorization.

1001231111310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400145.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 1001231111310 its reverse (131111321001), we get a palindrome (1132342432311).

The spelling of 1001231111310 in words is "one trillion, one billion, two hundred thirty-one million, one hundred eleven thousand, three hundred ten".