31144022202 has 32 divisors (see below), whose sum is σ = 65959920000. Its totient is φ = 9769507328.

The previous prime is 31144022149. The next prime is 31144022207. The reversal of 31144022202 is 20222044113.

It is not an unprimeable number, because it can be changed into a prime (31144022207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1319299 + ... + 1342697.

It is an arithmetic number, because the mean of its divisors is an integer number (2061247500).

Almost surely, 2^31144022202 is an apocalyptic number.

31144022202 is an abundant number, since it is smaller than the sum of its proper divisors (34815897798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31144022202 is a wasteful number, since it uses less digits than its factorization.

31144022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36470.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 31144022202 its reverse (20222044113), we get a palindrome (51366066315).

The spelling of 31144022202 in words is "thirty-one billion, one hundred forty-four million, twenty-two thousand, two hundred two".