131234034320420 has 144 divisors (see below), whose sum is σ = 291367407429504. Its totient is φ = 49636055232000.

The previous prime is 131234034320419. The next prime is 131234034320533. The reversal of 131234034320420 is 24023430432131.

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, 149690345 + ... + 150564495.

It is an arithmetic number, because the mean of its divisors is an integer number (2023384773816).

Almost surely, 2^{131234034320420} is an apocalyptic number.

131234034320420 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 131234034320420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145683703714752).

131234034320420 is an abundant number, since it is smaller than the sum of its proper divisors (160133373109084).

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

131234034320420 is a wasteful number, since it uses less digits than its factorization.

131234034320420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874402 (or 874369 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 131234034320420 its reverse (24023430432131), we get a palindrome (155257464752551).

The spelling of 131234034320420 in words is "one hundred thirty-one trillion, two hundred thirty-four billion, thirty-four million, three hundred twenty thousand, four hundred twenty".