131234124405 has 8 divisors (see below), whose sum is σ = 209974599072. Its totient is φ = 69991533008.

The previous prime is 131234124403. The next prime is 131234124419. The reversal of 131234124405 is 504421432131.

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

It is a cyclic number.

It is not a de Polignac number, because 131234124405 - 2¹ = 131234124403 is a prime.

It is a super-3 number, since 3×131234124405³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131234124403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4374470799 + ... + 4374470828.

It is an arithmetic number, because the mean of its divisors is an integer number (26246824884).

Almost surely, 2^131234124405 is an apocalyptic number.

131234124405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131234124405 is a deficient number, since it is larger than the sum of its proper divisors (78740474667).

131234124405 is an equidigital number, since it uses as much as digits as its factorization.

131234124405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8748941635.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 131234124405 its reverse (504421432131), we get a palindrome (635655556536).

The spelling of 131234124405 in words is "one hundred thirty-one billion, two hundred thirty-four million, one hundred twenty-four thousand, four hundred five".