31102143213 has 8 divisors (see below), whose sum is σ = 42899508000. Its totient is φ = 20019770288.

The previous prime is 31102143133. The next prime is 31102143217. The reversal of 31102143213 is 31234120113.

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 31102143213 - 2¹⁰ = 31102142189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31102143213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31102143217) 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, 178747863 + ... + 178748036.

It is an arithmetic number, because the mean of its divisors is an integer number (5362438500).

Almost surely, 2^31102143213 is an apocalyptic number.

It is an amenable number.

31102143213 is a deficient number, since it is larger than the sum of its proper divisors (11797364787).

31102143213 is a wasteful number, since it uses less digits than its factorization.

31102143213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357495931.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31102143213 its reverse (31234120113), we get a palindrome (62336263326).

The spelling of 31102143213 in words is "thirty-one billion, one hundred two million, one hundred forty-three thousand, two hundred thirteen".