31043100220442 has 8 divisors (see below), whose sum is σ = 46564683878016. Its totient is φ = 15521538927772.

The previous prime is 31043100220417. The next prime is 31043100220459. The reversal of 31043100220442 is 24402200134013.

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

It is a super-2 number, since 2×31043100220442² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1531658 + ... + 8026965.

It is an arithmetic number, because the mean of its divisors is an integer number (5820585484752).

Almost surely, 2^{31043100220442} is an apocalyptic number.

31043100220442 is a deficient number, since it is larger than the sum of its proper divisors (15521583657574).

31043100220442 is a wasteful number, since it uses less digits than its factorization.

31043100220442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11182452.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 31043100220442 its reverse (24402200134013), we get a palindrome (55445300354455).

The spelling of 31043100220442 in words is "thirty-one trillion, forty-three billion, one hundred million, two hundred twenty thousand, four hundred forty-two".