31211300001 has 16 divisors (see below), whose sum is σ = 47875048448. Its totient is φ = 17716914000.

The previous prime is 31211299993. The next prime is 31211300017. The reversal of 31211300001 is 10000311213.

It is not a de Polignac number, because 31211300001 - 2³ = 31211299993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31211300001.

It is not an unprimeable number, because it can be changed into a prime (31211100001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4918195 + ... + 4924536.

It is an arithmetic number, because the mean of its divisors is an integer number (2992190528).

Almost surely, 2^31211300001 is an apocalyptic number.

It is an amenable number.

31211300001 is a deficient number, since it is larger than the sum of its proper divisors (16663748447).

31211300001 is a wasteful number, since it uses less digits than its factorization.

31211300001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9842892.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 31211300001 its reverse (10000311213), we get a palindrome (41211611214).

The spelling of 31211300001 in words is "thirty-one billion, two hundred eleven million, three hundred thousand, one".