1131031030203 has 36 divisors (see below), whose sum is σ = 1692830168640. Its totient is φ = 727658027712.

The previous prime is 1131031030187. The next prime is 1131031030211. The reversal of 1131031030203 is 3020301301311.

It is a happy number.

1131031030203 is a `hidden beast` number, since 11 + 310 + 310 + 30 + 2 + 0 + 3 = 666.

It is not a de Polignac number, because 1131031030203 - 2⁴ = 1131031030187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131031030223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15624150 + ... + 15696372.

It is an arithmetic number, because the mean of its divisors is an integer number (47023060240).

Almost surely, 2^{1131031030203} is an apocalyptic number.

1131031030203 is a deficient number, since it is larger than the sum of its proper divisors (561799138437).

1131031030203 is a wasteful number, since it uses less digits than its factorization.

1131031030203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74356 (or 74324 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 1131031030203 its reverse (3020301301311), we get a palindrome (4151332331514).

The spelling of 1131031030203 in words is "one trillion, one hundred thirty-one billion, thirty-one million, thirty thousand, two hundred three".