232215543222131 has 12 divisors (see below), whose sum is σ = 270129713214672. Its totient is φ = 199040841801648.

The previous prime is 232215543222097. The next prime is 232215543222139. The reversal of 232215543222131 is 131222345512232.

It is a de Polignac number, because none of the positive numbers 2^k-232215543222131 is a prime.

It is a super-2 number, since 2×232215543222131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232215543222139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3094580 + ... + 21771713.

It is an arithmetic number, because the mean of its divisors is an integer number (22510809434556).

Almost surely, 2^{232215543222131} is an apocalyptic number.

232215543222131 is a deficient number, since it is larger than the sum of its proper divisors (37914169992541).

232215543222131 is a wasteful number, since it uses less digits than its factorization.

232215543222131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25056890 (or 25056883 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

Adding to 232215543222131 its reverse (131222345512232), we get a palindrome (363437888734363).

The spelling of 232215543222131 in words is "two hundred thirty-two trillion, two hundred fifteen billion, five hundred forty-three million, two hundred twenty-two thousand, one hundred thirty-one".