13020230312 has 8 divisors (see below), whose sum is σ = 24412931850. Its totient is φ = 6510115152.

The previous prime is 13020230303. The next prime is 13020230357. The reversal of 13020230312 is 21303202031.

It can be written as a sum of positive squares in only one way, i.e., 13020179236 + 51076 = 114106^2 + 226^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 813764387 + ... + 813764402.

Almost surely, 2^13020230312 is an apocalyptic number.

It is an amenable number.

13020230312 is a deficient number, since it is larger than the sum of its proper divisors (11392701538).

13020230312 is a wasteful number, since it uses less digits than its factorization.

13020230312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627528795 (or 1627528791 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13020230312 its reverse (21303202031), we get a palindrome (34323432343).

The spelling of 13020230312 in words is "thirteen billion, twenty million, two hundred thirty thousand, three hundred twelve".