31330021010133 has 16 divisors (see below), whose sum is σ = 41907689020800. Its totient is φ = 20819524858176.

The previous prime is 31330021010129. The next prime is 31330021010143. The reversal of 31330021010133 is 33101012003313.

It is not a de Polignac number, because 31330021010133 - 2² = 31330021010129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31330021010143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14760943 + ... + 16749491.

It is an arithmetic number, because the mean of its divisors is an integer number (2619230563800).

Almost surely, 2^{31330021010133} is an apocalyptic number.

It is an amenable number.

31330021010133 is a deficient number, since it is larger than the sum of its proper divisors (10577668010667).

31330021010133 is a wasteful number, since it uses less digits than its factorization.

31330021010133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005436.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 31330021010133 its reverse (33101012003313), we get a palindrome (64431033013446).

The spelling of 31330021010133 in words is "thirty-one trillion, three hundred thirty billion, twenty-one million, ten thousand, one hundred thirty-three".