1203131220113 has 16 divisors (see below), whose sum is σ = 1210255312896. Its totient is φ = 1196032234320.

The previous prime is 1203131220073. The next prime is 1203131220163. The reversal of 1203131220113 is 3110221313021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1203131220113 - 2¹⁰ = 1203131219089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1203131220163) 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, 347422820 + ... + 347426282.

It is an arithmetic number, because the mean of its divisors is an integer number (75640957056).

Almost surely, 2^{1203131220113} is an apocalyptic number.

It is an amenable number.

1203131220113 is a deficient number, since it is larger than the sum of its proper divisors (7124092783).

1203131220113 is a wasteful number, since it uses less digits than its factorization.

1203131220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6524.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1203131220113 its reverse (3110221313021), we get a palindrome (4313352533134).

The spelling of 1203131220113 in words is "one trillion, two hundred three billion, one hundred thirty-one million, two hundred twenty thousand, one hundred thirteen".