31000133101 has 8 divisors (see below), whose sum is σ = 35584799040. Its totient is φ = 26454486048.

The previous prime is 31000133077. The next prime is 31000133123. The reversal of 31000133101 is 10133100013.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31000133101 - 2⁹ = 31000132589 is a prime.

It is a super-2 number, since 2×31000133101² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31000133141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9753016 + ... + 9756193.

It is an arithmetic number, because the mean of its divisors is an integer number (4448099880).

Almost surely, 2^31000133101 is an apocalyptic number.

It is an amenable number.

31000133101 is a deficient number, since it is larger than the sum of its proper divisors (4584665939).

31000133101 is a wasteful number, since it uses less digits than its factorization.

31000133101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19509443.

The product of its (nonzero) digits is 27, while the sum is 13.

Adding to 31000133101 its reverse (10133100013), we get a palindrome (41133233114).

The spelling of 31000133101 in words is "thirty-one billion, one hundred thirty-three thousand, one hundred one".