31230231133 has 8 divisors (see below), whose sum is σ = 31615676352. Its totient is φ = 30846518976.

The previous prime is 31230231127. The next prime is 31230231143. The reversal of 31230231133 is 33113203213.

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 31230231133 - 2¹⁷ = 31230100061 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 (31230231103) 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, 396985 + ... + 469102.

It is an arithmetic number, because the mean of its divisors is an integer number (3951959544).

Almost surely, 2^31230231133 is an apocalyptic number.

It is an amenable number.

31230231133 is a deficient number, since it is larger than the sum of its proper divisors (385445219).

31230231133 is a wasteful number, since it uses less digits than its factorization.

31230231133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866531.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31230231133 its reverse (33113203213), we get a palindrome (64343434346).

The spelling of 31230231133 in words is "thirty-one billion, two hundred thirty million, two hundred thirty-one thousand, one hundred thirty-three".