1203440100 has 36 divisors (see below), whose sum is σ = 3481954224. Its totient is φ = 320917280.

The previous prime is 1203440093. The next prime is 1203440129. The reversal of 1203440100 is 10443021.

1203440100 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 1203440100.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2005434 + ... + 2006033.

Almost surely, 2^1203440100 is an apocalyptic number.

1203440100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203440100 is an abundant number, since it is smaller than the sum of its proper divisors (2278514124).

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

1203440100 is a wasteful number, since it uses less digits than its factorization.

1203440100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4011484 (or 4011477 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1203440100 is about 34690.6341827301. The cubic root of 1203440100 is about 1063.6730591873.

Adding to 1203440100 its reverse (10443021), we get a palindrome (1213883121).

The spelling of 1203440100 in words is "one billion, two hundred three million, four hundred forty thousand, one hundred".