131403233013401 has 4 divisors (see below), whose sum is σ = 131948474644404. Its totient is φ = 130857991382400.

The previous prime is 131403233013341. The next prime is 131403233013413. The reversal of 131403233013401 is 104310332304131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63368780123401 + 68034452890000 = 7960451^2 + 8248300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131403233013401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131403238013401) 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, 272620815140 + ... + 272620815621.

It is an arithmetic number, because the mean of its divisors is an integer number (32987118661101).

Almost surely, 2^{131403233013401} is an apocalyptic number.

It is an amenable number.

131403233013401 is a deficient number, since it is larger than the sum of its proper divisors (545241631003).

131403233013401 is an equidigital number, since it uses as much as digits as its factorization.

131403233013401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545241631002.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 131403233013401 its reverse (104310332304131), we get a palindrome (235713565317532).

The spelling of 131403233013401 in words is "one hundred thirty-one trillion, four hundred three billion, two hundred thirty-three million, thirteen thousand, four hundred one".