131101232032406 has 4 divisors (see below), whose sum is σ = 196651848048612. Its totient is φ = 65550616016202.

The previous prime is 131101232032387. The next prime is 131101232032423. The reversal of 131101232032406 is 604230232101131.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32775308008100 + ... + 32775308008103.

It is an arithmetic number, because the mean of its divisors is an integer number (49162962012153).

Almost surely, 2^{131101232032406} is an apocalyptic number.

131101232032406 is a deficient number, since it is larger than the sum of its proper divisors (65550616016206).

131101232032406 is an equidigital number, since it uses as much as digits as its factorization.

131101232032406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65550616016205.

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

Adding to 131101232032406 its reverse (604230232101131), we get a palindrome (735331464133537).

The spelling of 131101232032406 in words is "one hundred thirty-one trillion, one hundred one billion, two hundred thirty-two million, thirty-two thousand, four hundred six".