231130232132 has 6 divisors (see below), whose sum is σ = 404477906238. Its totient is φ = 115565116064.

The previous prime is 231130232071. The next prime is 231130232143. The reversal of 231130232132 is 231232031132.

It can be written as a sum of positive squares in only one way, i.e., 169500183616 + 61630048516 = 411704^2 + 248254^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231130232098 and 231130232107.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28891279013 + ... + 28891279020.

It is an arithmetic number, because the mean of its divisors is an integer number (67412984373).

Almost surely, 2^231130232132 is an apocalyptic number.

It is an amenable number.

231130232132 is a deficient number, since it is larger than the sum of its proper divisors (173347674106).

231130232132 is a wasteful number, since it uses less digits than its factorization.

231130232132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57782558037 (or 57782558035 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 231130232132 its reverse (231232031132), we get a palindrome (462362263264).

The spelling of 231130232132 in words is "two hundred thirty-one billion, one hundred thirty million, two hundred thirty-two thousand, one hundred thirty-two".