131434251205 has 8 divisors (see below), whose sum is σ = 162808879104. Its totient is φ = 101755549200.

The previous prime is 131434251187. The next prime is 131434251209. The reversal of 131434251205 is 502152434131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131434251205 - 2⁷ = 131434251077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131434251209) by changing a digit.

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, 423981301 + ... + 423981610.

It is an arithmetic number, because the mean of its divisors is an integer number (20351109888).

Almost surely, 2^131434251205 is an apocalyptic number.

It is an amenable number.

131434251205 is a deficient number, since it is larger than the sum of its proper divisors (31374627899).

131434251205 is an equidigital number, since it uses as much as digits as its factorization.

131434251205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847962947.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 131434251205 its reverse (502152434131), we get a palindrome (633586685336).

The spelling of 131434251205 in words is "one hundred thirty-one billion, four hundred thirty-four million, two hundred fifty-one thousand, two hundred five".