131122012230320 has 120 divisors (see below), whose sum is σ = 323856038622048. Its totient is φ = 49362114355200.

The previous prime is 131122012230311. The next prime is 131122012230323. The reversal of 131122012230320 is 23032210221131.

It is not an unprimeable number, because it can be changed into a prime (131122012230323) 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, 1074348500 + ... + 1074470540.

Almost surely, 2^{131122012230320} is an apocalyptic number.

131122012230320 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 131122012230320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161928019311024).

131122012230320 is an abundant number, since it is smaller than the sum of its proper divisors (192734026391728).

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

131122012230320 is a wasteful number, since it uses less digits than its factorization.

131122012230320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168559 (or 168536 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 131122012230320 its reverse (23032210221131), we get a palindrome (154154222451451).

The spelling of 131122012230320 in words is "one hundred thirty-one trillion, one hundred twenty-two billion, twelve million, two hundred thirty thousand, three hundred twenty".