131250423220 has 96 divisors (see below), whose sum is σ = 339300089856. Its totient is φ = 41655081600.

The previous prime is 131250423203. The next prime is 131250423221. The reversal of 131250423220 is 22324052131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131250423221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 557616 + ... + 757255.

It is an arithmetic number, because the mean of its divisors is an integer number (3534375936).

Almost surely, 2^131250423220 is an apocalyptic number.

131250423220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131250423220 is an abundant number, since it is smaller than the sum of its proper divisors (208049666636).

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

131250423220 is a wasteful number, since it uses less digits than its factorization.

131250423220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314941 (or 1314939 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 131250423220 its reverse (22324052131), we get a palindrome (153574475351).

The spelling of 131250423220 in words is "one hundred thirty-one billion, two hundred fifty million, four hundred twenty-three thousand, two hundred twenty".