31345232143091 has 8 divisors (see below), whose sum is σ = 31486274784384. Its totient is φ = 31204193797440.

The previous prime is 31345232143051. The next prime is 31345232143117. The reversal of 31345232143091 is 19034123254313.

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 31345232143091 - 2¹⁸ = 31345231880947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31345232143031) 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, 14029661 + ... + 16109681.

It is an arithmetic number, because the mean of its divisors is an integer number (3935784348048).

Almost surely, 2^{31345232143091} is an apocalyptic number.

31345232143091 is a deficient number, since it is larger than the sum of its proper divisors (141042641293).

31345232143091 is a wasteful number, since it uses less digits than its factorization.

31345232143091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147821.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 31345232143091 in words is "thirty-one trillion, three hundred forty-five billion, two hundred thirty-two million, one hundred forty-three thousand, ninety-one".