31230131133 has 8 divisors (see below), whose sum is σ = 41643429696. Its totient is φ = 20818460000.

The previous prime is 31230131111. The next prime is 31230131137. The reversal of 31230131133 is 33113103213.

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 31230131133 - 2⁶ = 31230131069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31230131137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361353 + ... + 439358.

It is an arithmetic number, because the mean of its divisors is an integer number (5205428712).

Almost surely, 2^31230131133 is an apocalyptic number.

It is an amenable number.

31230131133 is a deficient number, since it is larger than the sum of its proper divisors (10413298563).

31230131133 is a wasteful number, since it uses less digits than its factorization.

31230131133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813715.

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

Adding to 31230131133 its reverse (33113103213), we get a palindrome (64343234346).

The spelling of 31230131133 in words is "thirty-one billion, two hundred thirty million, one hundred thirty-one thousand, one hundred thirty-three".