31214300442 has 64 divisors (see below), whose sum is σ = 70819392000. Its totient is φ = 9092461248.

The previous prime is 31214300407. The next prime is 31214300443. The reversal of 31214300442 is 24400341213.

It is not an unprimeable number, because it can be changed into a prime (31214300443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2333409 + ... + 2346747.

It is an arithmetic number, because the mean of its divisors is an integer number (1106553000).

Almost surely, 2^31214300442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31214300442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35409696000).

31214300442 is an abundant number, since it is smaller than the sum of its proper divisors (39605091558).

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

31214300442 is a wasteful number, since it uses less digits than its factorization.

31214300442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14955.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 31214300442 its reverse (24400341213), we get a palindrome (55614641655).

The spelling of 31214300442 in words is "thirty-one billion, two hundred fourteen million, three hundred thousand, four hundred forty-two".