31320230133 has 8 divisors (see below), whose sum is σ = 41789053408. Its totient is φ = 20865780144.

The previous prime is 31320230131. The next prime is 31320230141. The reversal of 31320230133 is 33103202313.

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

It is not a de Polignac number, because 31320230133 - 2¹ = 31320230131 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 (31320230131) 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 7 ways as a sum of consecutive naturals, for example, 3588235 + ... + 3596952.

It is an arithmetic number, because the mean of its divisors is an integer number (5223631676).

Almost surely, 2^31320230133 is an apocalyptic number.

It is an amenable number.

31320230133 is a deficient number, since it is larger than the sum of its proper divisors (10468823275).

31320230133 is a wasteful number, since it uses less digits than its factorization.

31320230133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7186643.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 31320230133 its reverse (33103202313), we get a palindrome (64423432446).

The spelling of 31320230133 in words is "thirty-one billion, three hundred twenty million, two hundred thirty thousand, one hundred thirty-three".