1201131200203 has 16 divisors (see below), whose sum is σ = 1367591040000. Its totient is φ = 1044236226880.

The previous prime is 1201131200167. The next prime is 1201131200209. The reversal of 1201131200203 is 3020021311021.

It is not a de Polignac number, because 1201131200203 - 2⁹ = 1201131199691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201131200209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 665598 + ... + 1686796.

It is an arithmetic number, because the mean of its divisors is an integer number (85474440000).

Almost surely, 2^{1201131200203} is an apocalyptic number.

1201131200203 is a deficient number, since it is larger than the sum of its proper divisors (166459839797).

1201131200203 is a wasteful number, since it uses less digits than its factorization.

1201131200203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025882.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1201131200203 its reverse (3020021311021), we get a palindrome (4221152511224).

The spelling of 1201131200203 in words is "one trillion, two hundred one billion, one hundred thirty-one million, two hundred thousand, two hundred three".