131302232121 has 8 divisors (see below), whose sum is σ = 185367857184. Its totient is φ = 82385714240.

The previous prime is 131302232107. The next prime is 131302232129. The reversal of 131302232121 is 121232203131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131302232121 - 2⁶ = 131302232057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131302232129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1287276735 + ... + 1287276836.

It is an arithmetic number, because the mean of its divisors is an integer number (23170982148).

Almost surely, 2^131302232121 is an apocalyptic number.

It is an amenable number.

131302232121 is a deficient number, since it is larger than the sum of its proper divisors (54065625063).

131302232121 is a wasteful number, since it uses less digits than its factorization.

131302232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574553591.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131302232121 its reverse (121232203131), we get a palindrome (252534435252).

The spelling of 131302232121 in words is "one hundred thirty-one billion, three hundred two million, two hundred thirty-two thousand, one hundred twenty-one".