131343231210401 has 4 divisors (see below), whose sum is σ = 150106549954752. Its totient is φ = 112579912466052.

The previous prime is 131343231210319. The next prime is 131343231210409. The reversal of 131343231210401 is 104012132343131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131343231210401 is a prime.

It is a super-3 number, since 3×131343231210401³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131343231210409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9381659372165 + ... + 9381659372178.

It is an arithmetic number, because the mean of its divisors is an integer number (37526637488688).

Almost surely, 2^{131343231210401} is an apocalyptic number.

It is an amenable number.

131343231210401 is a deficient number, since it is larger than the sum of its proper divisors (18763318744351).

131343231210401 is an equidigital number, since it uses as much as digits as its factorization.

131343231210401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18763318744350.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 131343231210401 its reverse (104012132343131), we get a palindrome (235355363553532).

The spelling of 131343231210401 in words is "one hundred thirty-one trillion, three hundred forty-three billion, two hundred thirty-one million, two hundred ten thousand, four hundred one".