31421111044322 has 64 divisors (see below), whose sum is σ = 50491224163584. Its totient is φ = 14613498808320.

The previous prime is 31421111044313. The next prime is 31421111044327. The reversal of 31421111044322 is 22344011112413.

It is a super-2 number, since 2×31421111044322² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31421111044327) 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, 1556800643 + ... + 1556820825.

It is an arithmetic number, because the mean of its divisors is an integer number (788925377556).

Almost surely, 2^{31421111044322} is an apocalyptic number.

31421111044322 is a deficient number, since it is larger than the sum of its proper divisors (19070113119262).

31421111044322 is a wasteful number, since it uses less digits than its factorization.

31421111044322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21803.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 31421111044322 its reverse (22344011112413), we get a palindrome (53765122156735).

The spelling of 31421111044322 in words is "thirty-one trillion, four hundred twenty-one billion, one hundred eleven million, forty-four thousand, three hundred twenty-two".