1213433042012 has 48 divisors (see below), whose sum is σ = 2373909108480. Its totient is φ = 539338694400.

The previous prime is 1213433042009. The next prime is 1213433042057. The reversal of 1213433042012 is 2102403343121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 991064 + ... + 1846367.

It is an arithmetic number, because the mean of its divisors is an integer number (49456439760).

Almost surely, 2^{1213433042012} is an apocalyptic number.

It is an amenable number.

1213433042012 is a deficient number, since it is larger than the sum of its proper divisors (1160476066468).

1213433042012 is a wasteful number, since it uses less digits than its factorization.

1213433042012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837802 (or 2837800 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1213433042012 its reverse (2102403343121), we get a palindrome (3315836385133).

The spelling of 1213433042012 in words is "one trillion, two hundred thirteen billion, four hundred thirty-three million, forty-two thousand, twelve".