31133010101 has 4 divisors (see below), whose sum is σ = 32771589600. Its totient is φ = 29494430604.

The previous prime is 31133010091. The next prime is 31133010107. The reversal of 31133010101 is 10101033113.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10101033113 = 131 ⋅77107123.

It is a cyclic number.

It is not a de Polignac number, because 31133010101 - 2¹⁰ = 31133009077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31133010107) 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 3 ways as a sum of consecutive naturals, for example, 819289721 + ... + 819289758.

It is an arithmetic number, because the mean of its divisors is an integer number (8192897400).

Almost surely, 2^31133010101 is an apocalyptic number.

It is an amenable number.

31133010101 is a deficient number, since it is larger than the sum of its proper divisors (1638579499).

31133010101 is a wasteful number, since it uses less digits than its factorization.

31133010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638579498.

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 31133010101 its reverse (10101033113), we get a palindrome (41234043214).

The spelling of 31133010101 in words is "thirty-one billion, one hundred thirty-three million, ten thousand, one hundred one".