1201031113203 has 24 divisors (see below), whose sum is σ = 1775498835968. Its totient is φ = 781920769392.

The previous prime is 1201031113171. The next prime is 1201031113211. The reversal of 1201031113203 is 3023111301021.

1201031113203 is a `hidden beast` number, since 1 + 20 + 10 + 311 + 1 + 320 + 3 = 666.

It is not a de Polignac number, because 1201031113203 - 2⁵ = 1201031113171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201031113213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1805526 + ... + 2379492.

Almost surely, 2^{1201031113203} is an apocalyptic number.

1201031113203 is a deficient number, since it is larger than the sum of its proper divisors (574467722765).

1201031113203 is a wasteful number, since it uses less digits than its factorization.

1201031113203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579423 (or 579420 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1201031113203 its reverse (3023111301021), we get a palindrome (4224142414224).

The spelling of 1201031113203 in words is "one trillion, two hundred one billion, thirty-one million, one hundred thirteen thousand, two hundred three".