1131231012203 has 8 divisors (see below), whose sum is σ = 1141711398960. Its totient is φ = 1120752482400.

The previous prime is 1131231012199. The next prime is 1131231012209. The reversal of 1131231012203 is 3022101321311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131231012203 - 2² = 1131231012199 is a prime.

It is a super-3 number, since 3×1131231012203³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131231012209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775028 + ... + 1692078.

It is an arithmetic number, because the mean of its divisors is an integer number (142713924870).

Almost surely, 2^{1131231012203} is an apocalyptic number.

1131231012203 is a deficient number, since it is larger than the sum of its proper divisors (10480386757).

1131231012203 is a wasteful number, since it uses less digits than its factorization.

1131231012203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928477.

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

Adding to 1131231012203 its reverse (3022101321311), we get a palindrome (4153332333514).

The spelling of 1131231012203 in words is "one trillion, one hundred thirty-one billion, two hundred thirty-one million, twelve thousand, two hundred three".