31103002002000 has 80 divisors (see below), whose sum is σ = 100276078473792. Its totient is φ = 8294133865600.

The previous prime is 31103002001923. The next prime is 31103002002019. The reversal of 31103002002000 is 20020030113.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 2591910834 + ... + 2591922833.

Almost surely, 2^{31103002002000} is an apocalyptic number.

31103002002000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31103002002000 is an abundant number, since it is smaller than the sum of its proper divisors (69173076471792).

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

31103002002000 is a wasteful number, since it uses less digits than its factorization.

31103002002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183833693 (or 5183833677 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 31103002002000 its reverse (20020030113), we get a palindrome (31123022032113).

The spelling of 31103002002000 in words is "thirty-one trillion, one hundred three billion, two million, two thousand".