1131212203000 has 64 divisors (see below), whose sum is σ = 2887676269920. Its totient is φ = 411349888000.

The previous prime is 1131212202931. The next prime is 1131212203001. The reversal of 1131212203000 is 3022121311.

It is a super-2 number, since 2×1131212203000² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131212203001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51407737 + ... + 51429736.

Almost surely, 2^{1131212203000} is an apocalyptic number.

1131212203000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131212203000 is an abundant number, since it is smaller than the sum of its proper divisors (1756464066920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131212203000 is a wasteful number, since it uses less digits than its factorization.

1131212203000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102837505 (or 102837491 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1131212203000 its reverse (3022121311), we get a palindrome (1134234324311).

The spelling of 1131212203000 in words is "one trillion, one hundred thirty-one billion, two hundred twelve million, two hundred three thousand".