131223223110 has 256 divisors, whose sum is σ = 374119907328. Its totient is φ = 28839283200.

The previous prime is 131223223081. The next prime is 131223223147. The reversal of 131223223110 is 11322322131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 166738137 + ... + 166738923.

It is an arithmetic number, because the mean of its divisors is an integer number (1461405888).

Almost surely, 2^131223223110 is an apocalyptic number.

131223223110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131223223110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187059953664).

131223223110 is an abundant number, since it is smaller than the sum of its proper divisors (242896684218).

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

131223223110 is a wasteful number, since it uses less digits than its factorization.

131223223110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131223223110 its reverse (11322322131), we get a palindrome (142545545241).

The spelling of 131223223110 in words is "one hundred thirty-one billion, two hundred twenty-three million, two hundred twenty-three thousand, one hundred ten".