122313231100 has 72 divisors (see below), whose sum is σ = 274688668800. Its totient is φ = 47224876800.

The previous prime is 122313231083. The next prime is 122313231107. The reversal of 122313231100 is 1132313221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122313231107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1155186 + ... + 1256614.

It is an arithmetic number, because the mean of its divisors is an integer number (3815120400).

Almost surely, 2^122313231100 is an apocalyptic number.

122313231100 is a gapful number since it is divisible by the number (10) 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 122313231100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137344334400).

122313231100 is an abundant number, since it is smaller than the sum of its proper divisors (152375437700).

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

122313231100 is a wasteful number, since it uses less digits than its factorization.

122313231100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101863 (or 101856 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 122313231100 its reverse (1132313221), we get a palindrome (123445544321).

The spelling of 122313231100 in words is "one hundred twenty-two billion, three hundred thirteen million, two hundred thirty-one thousand, one hundred".