31332320021332 has 48 divisors (see below), whose sum is σ = 62474138475840. Its totient is φ = 13622180486400.

The previous prime is 31332320021279. The next prime is 31332320021347. The reversal of 31332320021332 is 23312002323313.

It is a self number, because there is not a number n which added to its sum of digits gives 31332320021332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163004769 + ... + 163196872.

It is an arithmetic number, because the mean of its divisors is an integer number (1301544551580).

Almost surely, 2^{31332320021332} is an apocalyptic number.

It is an amenable number.

31332320021332 is a deficient number, since it is larger than the sum of its proper divisors (31141818454508).

31332320021332 is a wasteful number, since it uses less digits than its factorization.

31332320021332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326201752 (or 326201750 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 31332320021332 its reverse (23312002323313), we get a palindrome (54644322344645).

The spelling of 31332320021332 in words is "thirty-one trillion, three hundred thirty-two billion, three hundred twenty million, twenty-one thousand, three hundred thirty-two".