13021123012 has 6 divisors (see below), whose sum is σ = 22786965278. Its totient is φ = 6510561504.

The previous prime is 13021123007. The next prime is 13021123019. The reversal of 13021123012 is 21032112031.

It can be written as a sum of positive squares in only one way, i.e., 6859814976 + 6161308036 = 82824^2 + 78494^2 .

It is not an unprimeable number, because it can be changed into a prime (13021123019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1627640373 + ... + 1627640380.

Almost surely, 2^13021123012 is an apocalyptic number.

It is an amenable number.

13021123012 is a deficient number, since it is larger than the sum of its proper divisors (9765842266).

13021123012 is a wasteful number, since it uses less digits than its factorization.

13021123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3255280757 (or 3255280755 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13021123012 its reverse (21032112031), we get a palindrome (34053235043).

The spelling of 13021123012 in words is "thirteen billion, twenty-one million, one hundred twenty-three thousand, twelve".