1211323200102 has 16 divisors (see below), whose sum is σ = 2691829333680. Its totient is φ = 403774400016.

The previous prime is 1211323200041. The next prime is 1211323200133. The reversal of 1211323200102 is 2010023231121.

1211323200102 is a `hidden beast` number, since 1 + 211 + 32 + 320 + 0 + 102 = 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11215955503 + ... + 11215955610.

It is an arithmetic number, because the mean of its divisors is an integer number (168239333355).

Almost surely, 2^{1211323200102} is an apocalyptic number.

1211323200102 is an abundant number, since it is smaller than the sum of its proper divisors (1480506133578).

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

1211323200102 is a wasteful number, since it uses less digits than its factorization.

1211323200102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22431911124 (or 22431911118 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1211323200102 its reverse (2010023231121), we get a palindrome (3221346431223).

The spelling of 1211323200102 in words is "one trillion, two hundred eleven billion, three hundred twenty-three million, two hundred thousand, one hundred two".