1203031131101 has 4 divisors (see below), whose sum is σ = 1208064734400. Its totient is φ = 1197997527804.

The previous prime is 1203031131083. The next prime is 1203031131131. The reversal of 1203031131101 is 1011311303021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1203031131101 - 2⁶ = 1203031131037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1203031131101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203031131131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2516801291 + ... + 2516801768.

It is an arithmetic number, because the mean of its divisors is an integer number (302016183600).

Almost surely, 2^{1203031131101} is an apocalyptic number.

It is an amenable number.

1203031131101 is a deficient number, since it is larger than the sum of its proper divisors (5033603299).

1203031131101 is an equidigital number, since it uses as much as digits as its factorization.

1203031131101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5033603298.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1203031131101 its reverse (1011311303021), we get a palindrome (2214342434122).

The spelling of 1203031131101 in words is "one trillion, two hundred three billion, thirty-one million, one hundred thirty-one thousand, one hundred one".