31213213141 has 8 divisors (see below), whose sum is σ = 34054574400. Its totient is φ = 28372484640.

The previous prime is 31213213139. The next prime is 31213213169. The reversal of 31213213141 is 14131231213.

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 31213213141 - 2¹ = 31213213139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31213210141) 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, 51936 + ... + 255193.

It is an arithmetic number, because the mean of its divisors is an integer number (4256821800).

Almost surely, 2^31213213141 is an apocalyptic number.

It is an amenable number.

31213213141 is a deficient number, since it is larger than the sum of its proper divisors (2841361259).

31213213141 is a wasteful number, since it uses less digits than its factorization.

31213213141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316379.

The product of its digits is 432, while the sum is 22.

Adding to 31213213141 its reverse (14131231213), we get a palindrome (45344444354).

The spelling of 31213213141 in words is "thirty-one billion, two hundred thirteen million, two hundred thirteen thousand, one hundred forty-one".