31204212143 has 8 divisors (see below), whose sum is σ = 33607518000. Its totient is φ = 28801332288.

The previous prime is 31204212139. The next prime is 31204212203. The reversal of 31204212143 is 34121240213.

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 31204212143 - 2² = 31204212139 is a prime.

It is a super-3 number, since 3×31204212143³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31204212043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54683 + ... + 255731.

It is an arithmetic number, because the mean of its divisors is an integer number (4200939750).

Almost surely, 2^31204212143 is an apocalyptic number.

31204212143 is a deficient number, since it is larger than the sum of its proper divisors (2403305857).

31204212143 is a wasteful number, since it uses less digits than its factorization.

31204212143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213001.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31204212143 its reverse (34121240213), we get a palindrome (65325452356).

The spelling of 31204212143 in words is "thirty-one billion, two hundred four million, two hundred twelve thousand, one hundred forty-three".