131402432434 has 48 divisors (see below), whose sum is σ = 248524552512. Its totient is φ = 51002512704.

The previous prime is 131402432431. The next prime is 131402432461. The reversal of 131402432434 is 434234204131.

It is a junction number, because it is equal to n+sod(n) for n = 131402432396 and 131402432405.

It is not an unprimeable number, because it can be changed into a prime (131402432431) 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, 398544 + ... + 649339.

It is an arithmetic number, because the mean of its divisors is an integer number (5177594844).

Almost surely, 2^131402432434 is an apocalyptic number.

131402432434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

131402432434 is a deficient number, since it is larger than the sum of its proper divisors (117122120078).

131402432434 is a wasteful number, since it uses less digits than its factorization.

131402432434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047971 (or 1047958 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 131402432434 its reverse (434234204131), we get a palindrome (565636636565).

The spelling of 131402432434 in words is "one hundred thirty-one billion, four hundred two million, four hundred thirty-two thousand, four hundred thirty-four".