1211133101320 has 64 divisors (see below), whose sum is σ = 2813406359040. Its totient is φ = 468750374400.

The previous prime is 1211133101293. The next prime is 1211133101333. The reversal of 1211133101320 is 231013311121.

It is a super-2 number, since 2×1211133101320² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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, 7973604 + ... + 8124076.

It is an arithmetic number, because the mean of its divisors is an integer number (43959474360).

Almost surely, 2^{1211133101320} is an apocalyptic number.

1211133101320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1211133101320 is an abundant number, since it is smaller than the sum of its proper divisors (1602273257720).

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

1211133101320 is a wasteful number, since it uses less digits than its factorization.

1211133101320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157006 (or 157002 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1211133101320 its reverse (231013311121), we get a palindrome (1442146412441).

The spelling of 1211133101320 in words is "one trillion, two hundred eleven billion, one hundred thirty-three million, one hundred one thousand, three hundred twenty".