131102121331231 has 4 divisors (see below), whose sum is σ = 131970347300464. Its totient is φ = 130233895362000.

The previous prime is 131102121331229. The next prime is 131102121331249. The reversal of 131102121331231 is 132133121201131.

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 131102121331231 - 2¹ = 131102121331229 is a prime.

It is a super-2 number, since 2×131102121331231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131102121331196 and 131102121331205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131102121335231) 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, 434112984390 + ... + 434112984691.

It is an arithmetic number, because the mean of its divisors is an integer number (32992586825116).

Almost surely, 2^{131102121331231} is an apocalyptic number.

131102121331231 is a deficient number, since it is larger than the sum of its proper divisors (868225969233).

131102121331231 is an equidigital number, since it uses as much as digits as its factorization.

131102121331231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868225969232.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 131102121331231 its reverse (132133121201131), we get a palindrome (263235242532362).

The spelling of 131102121331231 in words is "one hundred thirty-one trillion, one hundred two billion, one hundred twenty-one million, three hundred thirty-one thousand, two hundred thirty-one".