31103002002012 has 12 divisors (see below), whose sum is σ = 72573671338056. Its totient is φ = 10367667334000.

The previous prime is 31103002001923. The next prime is 31103002002019. The reversal of 31103002002012 is 21020020030113.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 31103002001982 and 31103002002000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103002002019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1295958416739 + ... + 1295958416762.

It is an arithmetic number, because the mean of its divisors is an integer number (6047805944838).

Almost surely, 2^{31103002002012} is an apocalyptic number.

It is an amenable number.

31103002002012 is an abundant number, since it is smaller than the sum of its proper divisors (41470669336044).

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

31103002002012 is a wasteful number, since it uses less digits than its factorization.

31103002002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591916833508 (or 2591916833506 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 31103002002012 its reverse (21020020030113), we get a palindrome (52123022032125).

The spelling of 31103002002012 in words is "thirty-one trillion, one hundred three billion, two million, two thousand, twelve".