131403402243 has 24 divisors (see below), whose sum is σ = 196178830848. Its totient is φ = 84705374832.

The previous prime is 131403402233. The next prime is 131403402259. The reversal of 131403402243 is 342204304131.

131403402243 is a `hidden beast` number, since 1 + 3 + 14 + 0 + 3 + 402 + 243 = 666.

It is not a de Polignac number, because 131403402243 - 2⁴ = 131403402227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131403402233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1836255 + ... + 1906472.

It is an arithmetic number, because the mean of its divisors is an integer number (8174117952).

Almost surely, 2^131403402243 is an apocalyptic number.

131403402243 is a deficient number, since it is larger than the sum of its proper divisors (64775428605).

131403402243 is a wasteful number, since it uses less digits than its factorization.

131403402243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3742863 (or 3742860 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 131403402243 its reverse (342204304131), we get a palindrome (473607706374).

The spelling of 131403402243 in words is "one hundred thirty-one billion, four hundred three million, four hundred two thousand, two hundred forty-three".