1230202311102 has 96 divisors (see below), whose sum is σ = 2835014307840. Its totient is φ = 384433560000.

The previous prime is 1230202311101. The next prime is 1230202311109. The reversal of 1230202311102 is 2011132020321.

1230202311102 is a `hidden beast` number, since 1 + 230 + 20 + 2 + 311 + 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 not an unprimeable number, because it can be changed into a prime (1230202311101) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 72909727 + ... + 72926597.

It is an arithmetic number, because the mean of its divisors is an integer number (29531399040).

Almost surely, 2^{1230202311102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230202311102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1417507153920).

1230202311102 is an abundant number, since it is smaller than the sum of its proper divisors (1604811996738).

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

1230202311102 is a wasteful number, since it uses less digits than its factorization.

1230202311102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19110 (or 19107 counting only the distinct ones).

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

Adding to 1230202311102 its reverse (2011132020321), we get a palindrome (3241334331423).

The spelling of 1230202311102 in words is "one trillion, two hundred thirty billion, two hundred two million, three hundred eleven thousand, one hundred two".