131403310431401 has 4 divisors (see below), whose sum is σ = 131403542440404. Its totient is φ = 131403078422400.

The previous prime is 131403310431397. The next prime is 131403310431431. The reversal of 131403310431401 is 104134013304131.

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 4978360538176 + 126424949893225 = 2231224^2 + 11243885^2 .

It is a cyclic number.

It is not a de Polignac number, because 131403310431401 - 2² = 131403310431397 is a prime.

It is a super-2 number, since 2×131403310431401² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131403310431431) 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, 115152860 + ... + 116288381.

It is an arithmetic number, because the mean of its divisors is an integer number (32850885610101).

Almost surely, 2^{131403310431401} is an apocalyptic number.

It is an amenable number.

131403310431401 is a deficient number, since it is larger than the sum of its proper divisors (232009003).

131403310431401 is an equidigital number, since it uses as much as digits as its factorization.

131403310431401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232009002.

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

Adding to 131403310431401 its reverse (104134013304131), we get a palindrome (235537323735532).

The spelling of 131403310431401 in words is "one hundred thirty-one trillion, four hundred three billion, three hundred ten million, four hundred thirty-one thousand, four hundred one".