1213042011102 has 192 divisors, whose sum is σ = 2724793344000. Its totient is φ = 389907302400.

The previous prime is 1213042011073. The next prime is 1213042011169. The reversal of 1213042011102 is 2011102403121.

1213042011102 is a `hidden beast` number, since 1 + 2 + 130 + 420 + 1 + 110 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5439650163 + ... + 5439650385.

It is an arithmetic number, because the mean of its divisors is an integer number (14191632000).

Almost surely, 2^{1213042011102} is an apocalyptic number.

1213042011102 is an abundant number, since it is smaller than the sum of its proper divisors (1511751332898).

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

1213042011102 is a wasteful number, since it uses less digits than its factorization.

1213042011102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1213042011102 its reverse (2011102403121), we get a palindrome (3224144414223).

The spelling of 1213042011102 in words is "one trillion, two hundred thirteen billion, forty-two million, eleven thousand, one hundred two".