31101200133 has 24 divisors (see below), whose sum is σ = 43016752896. Its totient is φ = 19986892800.

The previous prime is 31101200107. The next prime is 31101200147. The reversal of 31101200133 is 33100210113.

It is not a de Polignac number, because 31101200133 - 2²¹ = 31099102981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31101200173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1607628 + ... + 1626858.

It is an arithmetic number, because the mean of its divisors is an integer number (1792364704).

Almost surely, 2^31101200133 is an apocalyptic number.

It is an amenable number.

31101200133 is a deficient number, since it is larger than the sum of its proper divisors (11915552763).

31101200133 is a wasteful number, since it uses less digits than its factorization.

31101200133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19933 (or 19904 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 31101200133 its reverse (33100210113), we get a palindrome (64201410246).

The spelling of 31101200133 in words is "thirty-one billion, one hundred one million, two hundred thousand, one hundred thirty-three".