1213444140102 has 96 divisors (see below), whose sum is σ = 2889837100800. Its totient is φ = 366277640256.

The previous prime is 1213444140059. The next prime is 1213444140109. The reversal of 1213444140102 is 2010414443121.

1213444140102 is a `hidden beast` number, since 1 + 213 + 4 + 4 + 41 + 401 + 0 + 2 = 666.

It is a super-2 number, since 2×1213444140102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213444140109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11423628 + ... + 11529360.

It is an arithmetic number, because the mean of its divisors is an integer number (30102469800).

Almost surely, 2^{1213444140102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213444140102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1444918550400).

1213444140102 is an abundant number, since it is smaller than the sum of its proper divisors (1676392960698).

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

1213444140102 is a wasteful number, since it uses less digits than its factorization.

1213444140102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107242 (or 107239 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 1213444140102 its reverse (2010414443121), we get a palindrome (3223858583223).

The spelling of 1213444140102 in words is "one trillion, two hundred thirteen billion, four hundred forty-four million, one hundred forty thousand, one hundred two".