133111222031 has 16 divisors (see below), whose sum is σ = 138382992000. Its totient is φ = 127886481408.

The previous prime is 133111222021. The next prime is 133111222061. The reversal of 133111222031 is 130222111331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 133111222031 - 2¹⁰ = 133111221007 is a prime.

It is a super-2 number, since 2×133111222031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133111221994 and 133111222012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133111222021) 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, 4843130 + ... + 4870536.

It is an arithmetic number, because the mean of its divisors is an integer number (8648937000).

Almost surely, 2^133111222031 is an apocalyptic number.

133111222031 is a deficient number, since it is larger than the sum of its proper divisors (5271769969).

133111222031 is a wasteful number, since it uses less digits than its factorization.

133111222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28258.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 133111222031 its reverse (130222111331), we get a palindrome (263333333362).

The spelling of 133111222031 in words is "one hundred thirty-three billion, one hundred eleven million, two hundred twenty-two thousand, thirty-one".