2231232131000 has 128 divisors (see below), whose sum is σ = 5407439731200. Its totient is φ = 860709068800.

The previous prime is 2231232130997. The next prime is 2231232131017. The reversal of 2231232131000 is 1312321322.

It is a super-3 number, since 3×2231232131000³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 24982424 + ... + 25071576.

It is an arithmetic number, because the mean of its divisors is an integer number (42245622900).

Almost surely, 2^{2231232131000} is an apocalyptic number.

2231232131000 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 2231232131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2703719865600).

2231232131000 is an abundant number, since it is smaller than the sum of its proper divisors (3176207600200).

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

2231232131000 is a wasteful number, since it uses less digits than its factorization.

2231232131000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90066 (or 90052 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2231232131000 its reverse (1312321322), we get a palindrome (2232544452322).

The spelling of 2231232131000 in words is "two trillion, two hundred thirty-one billion, two hundred thirty-two million, one hundred thirty-one thousand".