131310423420 has 96 divisors (see below), whose sum is σ = 402075152640. Its totient is φ = 31754933760.

The previous prime is 131310423397. The next prime is 131310423451. The reversal of 131310423420 is 24324013131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26719 + ... + 513161.

It is an arithmetic number, because the mean of its divisors is an integer number (4188282840).

Almost surely, 2^131310423420 is an apocalyptic number.

131310423420 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 131310423420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201037576320).

131310423420 is an abundant number, since it is smaller than the sum of its proper divisors (270764729220).

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

131310423420 is a wasteful number, since it uses less digits than its factorization.

131310423420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486875 (or 486873 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 131310423420 its reverse (24324013131), we get a palindrome (155634436551).

The spelling of 131310423420 in words is "one hundred thirty-one billion, three hundred ten million, four hundred twenty-three thousand, four hundred twenty".