1202102321100 has 72 divisors (see below), whose sum is σ = 3478648810560. Its totient is φ = 320508444480.

The previous prime is 1202102321093. The next prime is 1202102321149. The reversal of 1202102321100 is 11232012021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1202102321100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1537911 + ... + 2183889.

Almost surely, 2^{1202102321100} is an apocalyptic number.

1202102321100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202102321100 is an abundant number, since it is smaller than the sum of its proper divisors (2276546489460).

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

1202102321100 is a wasteful number, since it uses less digits than its factorization.

1202102321100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652199 (or 652192 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1202102321100 its reverse (11232012021), we get a palindrome (1213334333121).

The spelling of 1202102321100 in words is "one trillion, two hundred two billion, one hundred two million, three hundred twenty-one thousand, one hundred".