31103212002030 has 96 divisors (see below), whose sum is σ = 95843971851264. Its totient is φ = 7109305596576.

The previous prime is 31103212002011. The next prime is 31103212002047. The reversal of 31103212002030 is 3020021230113.

31103212002030 is a `hidden beast` number, since 3 + 110 + 321 + 200 + 2 + 0 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 31103212001994 and 31103212002012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 914245542 + ... + 914279561.

It is an arithmetic number, because the mean of its divisors is an integer number (998374706784).

Almost surely, 2^{31103212002030} is an apocalyptic number.

31103212002030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31103212002030 is an abundant number, since it is smaller than the sum of its proper divisors (64740759849234).

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

31103212002030 is a wasteful number, since it uses less digits than its factorization.

31103212002030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828525132 (or 1828525120 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31103212002030 its reverse (3020021230113), we get a palindrome (34123233232143).

The spelling of 31103212002030 in words is "thirty-one trillion, one hundred three billion, two hundred twelve million, two thousand, thirty".