1131212100303 has 24 divisors (see below), whose sum is σ = 1710437953536. Its totient is φ = 719535171600.

The previous prime is 1131212100269. The next prime is 1131212100323. The reversal of 1131212100303 is 3030012121311.

1131212100303 is a `hidden beast` number, since 1 + 131 + 21 + 210 + 0 + 303 = 666.

It is not a de Polignac number, because 1131212100303 - 2⁸ = 1131212100047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131212100323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28533175 + ... + 28572792.

It is an arithmetic number, because the mean of its divisors is an integer number (71268248064).

Almost surely, 2^{1131212100303} is an apocalyptic number.

1131212100303 is a deficient number, since it is larger than the sum of its proper divisors (579225853233).

1131212100303 is a wasteful number, since it uses less digits than its factorization.

1131212100303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57106075 (or 57106072 counting only the distinct ones).

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

Adding to 1131212100303 its reverse (3030012121311), we get a palindrome (4161224221614).

The spelling of 1131212100303 in words is "one trillion, one hundred thirty-one billion, two hundred twelve million, one hundred thousand, three hundred three".