2231331102 has 192 divisors, whose sum is σ = 6668573184. Its totient is φ = 520369920.

The previous prime is 2231331049. The next prime is 2231331143. The reversal of 2231331102 is 2011331322.

2231331102 is a `hidden beast` number, since 2 + 231 + 331 + 102 = 666.

It is a super-3 number, since 3×2231331102³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 664993 + ... + 668339.

It is an arithmetic number, because the mean of its divisors is an integer number (34732152).

Almost surely, 2^2231331102 is an apocalyptic number.

2231331102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231331102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3334286592).

2231331102 is an abundant number, since it is smaller than the sum of its proper divisors (4437242082).

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

2231331102 is a wasteful number, since it uses less digits than its factorization.

2231331102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3423 (or 3420 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2231331102 is about 47236.9675360305. The cubic root of 2231331102 is about 1306.7364526828.

Adding to 2231331102 its reverse (2011331322), we get a palindrome (4242662424).

It can be divided in two parts, 2231 and 331102, that added together give a palindrome (333333).

The spelling of 2231331102 in words is "two billion, two hundred thirty-one million, three hundred thirty-one thousand, one hundred two".