31342223320 has 32 divisors (see below), whose sum is σ = 71075289600. Its totient is φ = 12438171648.

The previous prime is 31342223273. The next prime is 31342223323. The reversal of 31342223320 is 2332224313.

It is a super-3 number, since 3×31342223320³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31342223323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3079785 + ... + 3089944.

It is an arithmetic number, because the mean of its divisors is an integer number (2221102800).

Almost surely, 2^31342223320 is an apocalyptic number.

It is an amenable number.

31342223320 is an abundant number, since it is smaller than the sum of its proper divisors (39733066280).

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

31342223320 is a wasteful number, since it uses less digits than its factorization.

31342223320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6169867 (or 6169863 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 31342223320 its reverse (2332224313), we get a palindrome (33674447633).

The spelling of 31342223320 in words is "thirty-one billion, three hundred forty-two million, two hundred twenty-three thousand, three hundred twenty".