130231232122 has 4 divisors (see below), whose sum is σ = 195346848186. Its totient is φ = 65115616060.

The previous prime is 130231232081. The next prime is 130231232143. The reversal of 130231232122 is 221232132031.

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

It can be written as a sum of positive squares in only one way, i.e., 118376595481 + 11854636641 = 344059^2 + 108879^2 .

It is a junction number, because it is equal to n+sod(n) for n = 130231232093 and 130231232102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32557808029 + ... + 32557808032.

Almost surely, 2^130231232122 is an apocalyptic number.

130231232122 is a deficient number, since it is larger than the sum of its proper divisors (65115616064).

130231232122 is an equidigital number, since it uses as much as digits as its factorization.

130231232122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65115616063.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 130231232122 its reverse (221232132031), we get a palindrome (351463364153).

The spelling of 130231232122 in words is "one hundred thirty billion, two hundred thirty-one million, two hundred thirty-two thousand, one hundred twenty-two".