131404034346 has 128 divisors (see below), whose sum is σ = 291894865920. Its totient is φ = 39184104192.

The previous prime is 131404034341. The next prime is 131404034347. The reversal of 131404034346 is 643430404131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (131404034341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 223856665 + ... + 223857251.

It is an arithmetic number, because the mean of its divisors is an integer number (2280428640).

Almost surely, 2^131404034346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131404034346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145947432960).

131404034346 is an abundant number, since it is smaller than the sum of its proper divisors (160490831574).

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

131404034346 is a wasteful number, since it uses less digits than its factorization.

131404034346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 131404034346 its reverse (643430404131), we get a palindrome (774834438477).

The spelling of 131404034346 in words is "one hundred thirty-one billion, four hundred four million, thirty-four thousand, three hundred forty-six".