31213213041 has 8 divisors (see below), whose sum is σ = 41679459040. Its totient is φ = 20777887872.

The previous prime is 31213213021. The next prime is 31213213043. The reversal of 31213213041 is 14031231213.

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

It is not a de Polignac number, because 31213213041 - 2²⁶ = 31146104177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31213212999 and 31213213017.

It is not an unprimeable number, because it can be changed into a prime (31213213043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7727851 + ... + 7731888.

It is an arithmetic number, because the mean of its divisors is an integer number (5209932380).

Almost surely, 2^31213213041 is an apocalyptic number.

It is an amenable number.

31213213041 is a deficient number, since it is larger than the sum of its proper divisors (10466245999).

31213213041 is a wasteful number, since it uses less digits than its factorization.

31213213041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15460415.

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

Adding to 31213213041 its reverse (14031231213), we get a palindrome (45244444254).

The spelling of 31213213041 in words is "thirty-one billion, two hundred thirteen million, two hundred thirteen thousand, forty-one".