1011131133203 has 4 divisors (see below), whose sum is σ = 1028268949080. Its totient is φ = 993993317328.

The previous prime is 1011131133169. The next prime is 1011131133281. The reversal of 1011131133203 is 3023311311101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011131133203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011134133203) 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, 8568907850 + ... + 8568907967.

It is an arithmetic number, because the mean of its divisors is an integer number (257067237270).

Almost surely, 2^{1011131133203} is an apocalyptic number.

1011131133203 is a deficient number, since it is larger than the sum of its proper divisors (17137815877).

1011131133203 is an equidigital number, since it uses as much as digits as its factorization.

1011131133203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17137815876.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 1011131133203 its reverse (3023311311101), we get a palindrome (4034442444304).

The spelling of 1011131133203 in words is "one trillion, eleven billion, one hundred thirty-one million, one hundred thirty-three thousand, two hundred three".