13043433421012 has 6 divisors (see below), whose sum is σ = 22826008486778. Its totient is φ = 6521716710504.

The previous prime is 13043433420991. The next prime is 13043433421043. The reversal of 13043433421012 is 21012433434031.

It can be written as a sum of positive squares in only one way, i.e., 9776290410436 + 3267143010576 = 3126706^2 + 1807524^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1630429177623 + ... + 1630429177630.

Almost surely, 2^{13043433421012} is an apocalyptic number.

It is an amenable number.

13043433421012 is a deficient number, since it is larger than the sum of its proper divisors (9782575065766).

13043433421012 is a wasteful number, since it uses less digits than its factorization.

13043433421012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260858355257 (or 3260858355255 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 13043433421012 its reverse (21012433434031), we get a palindrome (34055866855043).

The spelling of 13043433421012 in words is "thirteen trillion, forty-three billion, four hundred thirty-three million, four hundred twenty-one thousand, twelve".