1202111113311 has 24 divisors (see below), whose sum is σ = 1764609784704. Its totient is φ = 788427879120.

The previous prime is 1202111113303. The next prime is 1202111113367. The reversal of 1202111113311 is 1133111112021.

1202111113311 is a `hidden beast` number, since 12 + 0 + 211 + 111 + 331 + 1 = 666.

It is not a de Polignac number, because 1202111113311 - 2³ = 1202111113303 is a prime.

It is a super-2 number, since 2×1202111113311² (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 (1202111113391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1715761 + ... + 2312586.

It is an arithmetic number, because the mean of its divisors is an integer number (73525407696).

Almost surely, 2^{1202111113311} is an apocalyptic number.

1202111113311 is a deficient number, since it is larger than the sum of its proper divisors (562498671393).

1202111113311 is a wasteful number, since it uses less digits than its factorization.

1202111113311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4028891 (or 4028888 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 1202111113311 its reverse (1133111112021), we get a palindrome (2335222225332).

The spelling of 1202111113311 in words is "one trillion, two hundred two billion, one hundred eleven million, one hundred thirteen thousand, three hundred eleven".