31012002000320 has 112 divisors (see below), whose sum is σ = 80835677340768. Its totient is φ = 11238602895360.

The previous prime is 31012002000293. The next prime is 31012002000323. The reversal of 31012002000320 is 2300020021013.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31012002000295 and 31012002000304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31012002000323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14003159 + ... + 16065878.

It is an arithmetic number, because the mean of its divisors is an integer number (721747119114).

Almost surely, 2^{31012002000320} is an apocalyptic number.

It is an amenable number.

31012002000320 is an abundant number, since it is smaller than the sum of its proper divisors (49823675340448).

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

31012002000320 is a wasteful number, since it uses less digits than its factorization.

31012002000320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30069358 (or 30069348 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 31012002000320 its reverse (2300020021013), we get a palindrome (33312022021333).

The spelling of 31012002000320 in words is "thirty-one trillion, twelve billion, two million, three hundred twenty", and thus it is an aban number.