31133200113 has 6 divisors (see below), whose sum is σ = 44970177954. Its totient is φ = 20755466736.

The previous prime is 31133200097. The next prime is 31133200127. The reversal of 31133200113 is 31100233113.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 25552661904 + 5580538209 = 159852^2 + 74703^2 .

It is not a de Polignac number, because 31133200113 - 2⁴ = 31133200097 is a prime.

It is a super-2 number, since 2×31133200113² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31133200193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1729622220 + ... + 1729622237.

It is an arithmetic number, because the mean of its divisors is an integer number (7495029659).

Almost surely, 2^31133200113 is an apocalyptic number.

It is an amenable number.

31133200113 is a deficient number, since it is larger than the sum of its proper divisors (13836977841).

31133200113 is a wasteful number, since it uses less digits than its factorization.

31133200113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3459244463 (or 3459244460 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 31133200113 its reverse (31100233113), we get a palindrome (62233433226).

The spelling of 31133200113 in words is "thirty-one billion, one hundred thirty-three million, two hundred thousand, one hundred thirteen".