31304333340372 has 24 divisors (see below), whose sum is σ = 73043661624192. Its totient is φ = 10434746756800.

The previous prime is 31304333340367. The next prime is 31304333340373. The reversal of 31304333340372 is 27304333340313.

It is a super-2 number, since 2×31304333340372² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31304333340372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31304333340373) 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, 526597 + ... + 7930067.

It is an arithmetic number, because the mean of its divisors is an integer number (3043485901008).

Almost surely, 2^{31304333340372} is an apocalyptic number.

It is an amenable number.

31304333340372 is an abundant number, since it is smaller than the sum of its proper divisors (41739328283820).

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

31304333340372 is a wasteful number, since it uses less digits than its factorization.

31304333340372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7755839 (or 7755837 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 39.

Adding to 31304333340372 its reverse (27304333340313), we get a palindrome (58608666680685).

The spelling of 31304333340372 in words is "thirty-one trillion, three hundred four billion, three hundred thirty-three million, three hundred forty thousand, three hundred seventy-two".