1230204100 has 36 divisors (see below), whose sum is σ = 2675975428. Its totient is φ = 490896000.

The previous prime is 1230204091. The next prime is 1230204109. The reversal of 1230204100 is 14020321.

It is an interprime number because it is at equal distance from previous prime (1230204091) and next prime (1230204109).

It can be written as a sum of positive squares in 6 ways, for example, as 650454016 + 579750084 = 25504^2 + 24078^2 .

It is not an unprimeable number, because it can be changed into a prime (1230204109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27490 + ... + 56710.

Almost surely, 2^1230204100 is an apocalyptic number.

1230204100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230204100 is an abundant number, since it is smaller than the sum of its proper divisors (1445771328).

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

1230204100 is a wasteful number, since it uses less digits than its factorization.

1230204100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29656 (or 29649 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1230204100 is about 35074.2654948040. The cubic root of 1230204100 is about 1071.5005296010.

Adding to 1230204100 its reverse (14020321), we get a palindrome (1244224421).

The spelling of 1230204100 in words is "one billion, two hundred thirty million, two hundred four thousand, one hundred".