31301210133 has 20 divisors (see below), whose sum is σ = 46968304768. Its totient is φ = 20773885320.

The previous prime is 31301210131. The next prime is 31301210153. The reversal of 31301210133 is 33101210313.

It is a happy number.

It is not a de Polignac number, because 31301210133 - 2¹ = 31301210131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31301210131) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 848383 + ... + 884508.

Almost surely, 2^31301210133 is an apocalyptic number.

It is an amenable number.

31301210133 is a deficient number, since it is larger than the sum of its proper divisors (15667094635).

31301210133 is a wasteful number, since it uses less digits than its factorization.

31301210133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733126 (or 1733117 counting only the distinct ones).

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

Adding to 31301210133 its reverse (33101210313), we get a palindrome (64402420446).

The spelling of 31301210133 in words is "thirty-one billion, three hundred one million, two hundred ten thousand, one hundred thirty-three".