133113311121 has 16 divisors (see below), whose sum is σ = 202845901824. Its totient is φ = 76062285264.

The previous prime is 133113311113. The next prime is 133113311129. The reversal of 133113311121 is 121113311331.

It is an interprime number because it is at equal distance from previous prime (133113311113) and next prime (133113311129).

It is not a de Polignac number, because 133113311121 - 2³ = 133113311113 is a prime.

It is a super-2 number, since 2×133113311121² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (133113311129) 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, 711046 + ... + 878528.

It is an arithmetic number, because the mean of its divisors is an integer number (12677868864).

Almost surely, 2^133113311121 is an apocalyptic number.

It is an amenable number.

133113311121 is a deficient number, since it is larger than the sum of its proper divisors (69732590703).

133113311121 is a wasteful number, since it uses less digits than its factorization.

133113311121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205340.

The product of its digits is 162, while the sum is 21.

Adding to 133113311121 its reverse (121113311331), we get a palindrome (254226622452).

The spelling of 133113311121 in words is "one hundred thirty-three billion, one hundred thirteen million, three hundred eleven thousand, one hundred twenty-one".