31313200143 has 8 divisors (see below), whose sum is σ = 41753840688. Its totient is φ = 20874013184.

The previous prime is 31313200129. The next prime is 31313200153. The reversal of 31313200143 is 34100231313.

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 31313200143 - 2⁵ = 31313200111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31313200123) 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, 312096 + ... + 400037.

It is an arithmetic number, because the mean of its divisors is an integer number (5219230086).

Almost surely, 2^31313200143 is an apocalyptic number.

31313200143 is a deficient number, since it is larger than the sum of its proper divisors (10440640545).

31313200143 is a wasteful number, since it uses less digits than its factorization.

31313200143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726793.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31313200143 its reverse (34100231313), we get a palindrome (65413431456).

The spelling of 31313200143 in words is "thirty-one billion, three hundred thirteen million, two hundred thousand, one hundred forty-three".