131223424232040 has 192 divisors, whose sum is σ = 468592807700160. Its totient is φ = 29296392330240.

The previous prime is 131223424232029. The next prime is 131223424232071. The reversal of 131223424232040 is 40232424322131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131223424231992 and 131223424232010.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 259246101 + ... + 259751780.

It is an arithmetic number, because the mean of its divisors is an integer number (2440587540105).

Almost surely, 2^{131223424232040} is an apocalyptic number.

131223424232040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131223424232040 is an abundant number, since it is smaller than the sum of its proper divisors (337369383468120).

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

131223424232040 is a wasteful number, since it uses less digits than its factorization.

131223424232040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518997952 (or 518997941 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 131223424232040 its reverse (40232424322131), we get a palindrome (171455848554171).

Subtracting from 131223424232040 its reverse (40232424322131), we obtain a palindrome (90990999909909).

The spelling of 131223424232040 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, four hundred twenty-four million, two hundred thirty-two thousand, forty".