31330220030 has 16 divisors (see below), whose sum is σ = 56441688624. Its totient is φ = 12521578560.

The previous prime is 31330220027. The next prime is 31330220041. The reversal of 31330220030 is 3002203313.

It is a junction number, because it is equal to n+sod(n) for n = 31330219990 and 31330220008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1301156 + ... + 1325015.

It is an arithmetic number, because the mean of its divisors is an integer number (3527605539).

Almost surely, 2^31330220030 is an apocalyptic number.

31330220030 is a deficient number, since it is larger than the sum of its proper divisors (25111468594).

31330220030 is a wasteful number, since it uses less digits than its factorization.

31330220030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2627371.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 31330220030 its reverse (3002203313), we get a palindrome (34332423343).

The spelling of 31330220030 in words is "thirty-one billion, three hundred thirty million, two hundred twenty thousand, thirty".