130231321012 has 24 divisors (see below), whose sum is σ = 246707659016. Its totient is φ = 59795324928.

The previous prime is 130231320991. The next prime is 130231321019. The reversal of 130231321012 is 210123132031.

It can be written as a sum of positive squares in 4 ways, for example, as 22441238416 + 107790082596 = 149804^2 + 328314^2 .

It is a super-3 number, since 3×130231321012³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130231321019) 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, 6478173 + ... + 6498244.

Almost surely, 2^130231321012 is an apocalyptic number.

It is an amenable number.

130231321012 is a deficient number, since it is larger than the sum of its proper divisors (116476338004).

130231321012 is a wasteful number, since it uses less digits than its factorization.

130231321012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12976627 (or 12976625 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 130231321012 its reverse (210123132031), we get a palindrome (340354453043).

The spelling of 130231321012 in words is "one hundred thirty billion, two hundred thirty-one million, three hundred twenty-one thousand, twelve".