131023325205 has 48 divisors (see below), whose sum is σ = 228960141696. Its totient is φ = 69309502080.

The previous prime is 131023325171. The next prime is 131023325227. The reversal of 131023325205 is 502523320131.

It is a happy number.

131023325205 is a `hidden beast` number, since 1 + 3 + 102 + 3 + 32 + 520 + 5 = 666.

It is not a de Polignac number, because 131023325205 - 2¹⁴ = 131023308821 is a prime.

It is a super-2 number, since 2×131023325205² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 14278999 + ... + 14288171.

It is an arithmetic number, because the mean of its divisors is an integer number (4770002952).

Almost surely, 2^131023325205 is an apocalyptic number.

131023325205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131023325205 is a deficient number, since it is larger than the sum of its proper divisors (97936816491).

131023325205 is a wasteful number, since it uses less digits than its factorization.

131023325205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11738 (or 11735 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 131023325205 its reverse (502523320131), we get a palindrome (633546645336).

The spelling of 131023325205 in words is "one hundred thirty-one billion, twenty-three million, three hundred twenty-five thousand, two hundred five".