131325233406 has 16 divisors (see below), whose sum is σ = 262695032064. Its totient is φ = 43767650264.

The previous prime is 131325233387. The next prime is 131325233423. The reversal of 131325233406 is 604332523131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1818516 + ... + 1889351.

It is an arithmetic number, because the mean of its divisors is an integer number (16418439504).

Almost surely, 2^131325233406 is an apocalyptic number.

131325233406 is an abundant number, since it is smaller than the sum of its proper divisors (131369798658).

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

131325233406 is a wasteful number, since it uses less digits than its factorization.

131325233406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3713775.

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 131325233406 its reverse (604332523131), we get a palindrome (735657756537).

The spelling of 131325233406 in words is "one hundred thirty-one billion, three hundred twenty-five million, two hundred thirty-three thousand, four hundred six".