31431224014322 has 64 divisors (see below), whose sum is σ = 52481197555200. Its totient is φ = 13998897070080.

The previous prime is 31431224014321. The next prime is 31431224014327. The reversal of 31431224014322 is 22341042213413.

It is a happy number.

It is a super-2 number, since 2×31431224014322² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31431224014321) 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, 120022358 + ... + 120283950.

It is an arithmetic number, because the mean of its divisors is an integer number (820018711800).

Almost surely, 2^{31431224014322} is an apocalyptic number.

31431224014322 is a deficient number, since it is larger than the sum of its proper divisors (21049973540878).

31431224014322 is a wasteful number, since it uses less digits than its factorization.

31431224014322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262211.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 31431224014322 its reverse (22341042213413), we get a palindrome (53772266227735).

The spelling of 31431224014322 in words is "thirty-one trillion, four hundred thirty-one billion, two hundred twenty-four million, fourteen thousand, three hundred twenty-two".