20031030212 has 12 divisors (see below), whose sum is σ = 36899266320. Its totient is φ = 9488382696.

The previous prime is 20031030199. The next prime is 20031030223. The reversal of 20031030212 is 21203013002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131783018 + ... + 131783169.

It is an arithmetic number, because the mean of its divisors is an integer number (3074938860).

Almost surely, 2^20031030212 is an apocalyptic number.

It is an amenable number.

20031030212 is a deficient number, since it is larger than the sum of its proper divisors (16868236108).

20031030212 is a wasteful number, since it uses less digits than its factorization.

20031030212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263566210 (or 263566208 counting only the distinct ones).

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

Adding to 20031030212 its reverse (21203013002), we get a palindrome (41234043214).

The spelling of 20031030212 in words is "twenty billion, thirty-one million, thirty thousand, two hundred twelve".