231322101102 has 128 divisors (see below), whose sum is σ = 532011110400. Its totient is φ = 74467058400.

The previous prime is 231322101083. The next prime is 231322101137. The reversal of 231322101102 is 201101223132.

231322101102 is a `hidden beast` number, since 231 + 322 + 1 + 0 + 110 + 2 = 666.

It is a super-2 number, since 2×231322101102² (a number of 24 digits) contains 22 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 63 ways as a sum of consecutive naturals, for example, 69443577 + ... + 69446907.

It is an arithmetic number, because the mean of its divisors is an integer number (4156336800).

Almost surely, 2^231322101102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231322101102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266005555200).

231322101102 is an abundant number, since it is smaller than the sum of its proper divisors (300689009298).

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

231322101102 is a wasteful number, since it uses less digits than its factorization.

231322101102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779 (or 3773 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 231322101102 its reverse (201101223132), we get a palindrome (432423324234).

The spelling of 231322101102 in words is "two hundred thirty-one billion, three hundred twenty-two million, one hundred one thousand, one hundred two".