1213012033112 has 32 divisors (see below), whose sum is σ = 2481379116480. Its totient is φ = 551320630560.

The previous prime is 1213012033109. The next prime is 1213012033151. The reversal of 1213012033112 is 2113302103121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410303 + ... + 1610705.

It is an arithmetic number, because the mean of its divisors is an integer number (77543097390).

Almost surely, 2^{1213012033112} is an apocalyptic number.

It is an amenable number.

1213012033112 is an abundant number, since it is smaller than the sum of its proper divisors (1268367083368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213012033112 is a wasteful number, since it uses less digits than its factorization.

1213012033112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211903 (or 1211899 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1213012033112 its reverse (2113302103121), we get a palindrome (3326314136233).

The spelling of 1213012033112 in words is "one trillion, two hundred thirteen billion, twelve million, thirty-three thousand, one hundred twelve".