212331031000 has 128 divisors (see below), whose sum is σ = 545161181760. Its totient is φ = 76764288000.

The previous prime is 212331030973. The next prime is 212331031001. The reversal of 212331031000 is 130133212.

It is a super-2 number, since 2×212331031000² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212331031001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1847212 + ... + 1958788.

Almost surely, 2^212331031000 is an apocalyptic number.

212331031000 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 212331031000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272580590880).

212331031000 is an abundant number, since it is smaller than the sum of its proper divisors (332830150760).

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

212331031000 is a wasteful number, since it uses less digits than its factorization.

212331031000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111782 (or 111768 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 212331031000 its reverse (130133212), we get a palindrome (212461164212).

The spelling of 212331031000 in words is "two hundred twelve billion, three hundred thirty-one million, thirty-one thousand".