31124211202 has 24 divisors (see below), whose sum is σ = 55776482496. Its totient is φ = 12758990376.

The previous prime is 31124211191. The next prime is 31124211233. The reversal of 31124211202 is 20211242113.

It is a self number, because there is not a number n which added to its sum of digits gives 31124211202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2093878 + ... + 2108689.

It is an arithmetic number, because the mean of its divisors is an integer number (2324020104).

Almost surely, 2^31124211202 is an apocalyptic number.

31124211202 is a deficient number, since it is larger than the sum of its proper divisors (24652271294).

31124211202 is a wasteful number, since it uses less digits than its factorization.

31124211202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4202622 (or 4202599 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 31124211202 its reverse (20211242113), we get a palindrome (51335453315).

The spelling of 31124211202 in words is "thirty-one billion, one hundred twenty-four million, two hundred eleven thousand, two hundred two".