131403310431023 has 4 divisors (see below), whose sum is σ = 133364553870360. Its totient is φ = 129442066991688.

The previous prime is 131403310431013. The next prime is 131403310431073. The reversal of 131403310431023 is 320134013304131.

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

It is a cyclic number.

It is not a de Polignac number, because 131403310431023 - 2⁴ = 131403310431007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131403310431013) 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, 980621719568 + ... + 980621719701.

It is an arithmetic number, because the mean of its divisors is an integer number (33341138467590).

Almost surely, 2^{131403310431023} is an apocalyptic number.

131403310431023 is a deficient number, since it is larger than the sum of its proper divisors (1961243439337).

131403310431023 is an equidigital number, since it uses as much as digits as its factorization.

131403310431023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961243439336.

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

Adding to 131403310431023 its reverse (320134013304131), we get a palindrome (451537323735154).

The spelling of 131403310431023 in words is "one hundred thirty-one trillion, four hundred three billion, three hundred ten million, four hundred thirty-one thousand, twenty-three".