1011211323331 has 16 divisors (see below), whose sum is σ = 1104016082400. Its totient is φ = 918552960000.

The previous prime is 1011211323293. The next prime is 1011211323337. The reversal of 1011211323331 is 1333231121101.

It is a cyclic number.

It is not a de Polignac number, because 1011211323331 - 2⁷ = 1011211323203 is a prime.

It is a super-2 number, since 2×1011211323331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1011211323337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112339831 + ... + 112348831.

It is an arithmetic number, because the mean of its divisors is an integer number (69001005150).

Almost surely, 2^{1011211323331} is an apocalyptic number.

1011211323331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1011211323331 is a deficient number, since it is larger than the sum of its proper divisors (92804759069).

1011211323331 is a wasteful number, since it uses less digits than its factorization.

1011211323331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15990.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1011211323331 its reverse (1333231121101), we get a palindrome (2344442444432).

The spelling of 1011211323331 in words is "one trillion, eleven billion, two hundred eleven million, three hundred twenty-three thousand, three hundred thirty-one".