12203201540 has 24 divisors (see below), whose sum is σ = 26740929600. Its totient is φ = 4669050848.

The previous prime is 12203201513. The next prime is 12203201551. The reversal of 12203201540 is 4510230221.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 13263890 + ... + 13264809.

It is an arithmetic number, because the mean of its divisors is an integer number (1114205400).

Almost surely, 2^12203201540 is an apocalyptic number.

12203201540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12203201540 is an abundant number, since it is smaller than the sum of its proper divisors (14537728060).

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

12203201540 is a wasteful number, since it uses less digits than its factorization.

12203201540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26528731 (or 26528729 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 12203201540 its reverse (4510230221), we get a palindrome (16713431761).

The spelling of 12203201540 in words is "twelve billion, two hundred three million, two hundred one thousand, five hundred forty".