31213134104143 has 8 divisors (see below), whose sum is σ = 32876504199920. Its totient is φ = 29551821364800.

The previous prime is 31213134104129. The next prime is 31213134104183. The reversal of 31213134104143 is 34140143131213.

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

It is not a de Polignac number, because 31213134104143 - 2⁹ = 31213134103631 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 (31213134104183) 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, 514307958 + ... + 514368643.

It is an arithmetic number, because the mean of its divisors is an integer number (4109563024990).

Almost surely, 2^{31213134104143} is an apocalyptic number.

31213134104143 is a deficient number, since it is larger than the sum of its proper divisors (1663370095777).

31213134104143 is a wasteful number, since it uses less digits than its factorization.

31213134104143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028678217.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 31213134104143 its reverse (34140143131213), we get a palindrome (65353277235356).

The spelling of 31213134104143 in words is "thirty-one trillion, two hundred thirteen billion, one hundred thirty-four million, one hundred four thousand, one hundred forty-three".