233011131000 has 128 divisors (see below), whose sum is σ = 727252680960. Its totient is φ = 62114256000.

The previous prime is 233011130993. The next prime is 233011131053. The reversal of 233011131000 is 131110332.

It is a super-2 number, since 2×233011131000² (a number of 24 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9548815 + ... + 9573185.

It is an arithmetic number, because the mean of its divisors is an integer number (5681661570).

Almost surely, 2^233011131000 is an apocalyptic number.

233011131000 is a gapful number since it is divisible by the number (20) 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 233011131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363626340480).

233011131000 is an abundant number, since it is smaller than the sum of its proper divisors (494241549960).

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

233011131000 is a wasteful number, since it uses less digits than its factorization.

233011131000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27582 (or 27568 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 233011131000 its reverse (131110332), we get a palindrome (233142241332).

The spelling of 233011131000 in words is "two hundred thirty-three billion, eleven million, one hundred thirty-one thousand".