1200103011240 has 128 divisors (see below), whose sum is σ = 4225845461760. Its totient is φ = 266895489024.

The previous prime is 1200103011199. The next prime is 1200103011241. The reversal of 1200103011240 is 421103010021.

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

It is not an unprimeable number, because it can be changed into a prime (1200103011241) 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 31 ways as a sum of consecutive naturals, for example, 19275597 + ... + 19337756.

It is an arithmetic number, because the mean of its divisors is an integer number (33014417670).

Almost surely, 2^{1200103011240} is an apocalyptic number.

1200103011240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200103011240 is an abundant number, since it is smaller than the sum of its proper divisors (3025742450520).

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

1200103011240 is a wasteful number, since it uses less digits than its factorization.

1200103011240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38613411 (or 38613407 counting only the distinct ones).

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

Adding to 1200103011240 its reverse (421103010021), we get a palindrome (1621206021261).

The spelling of 1200103011240 in words is "one trillion, two hundred billion, one hundred three million, eleven thousand, two hundred forty".