31003212212 has 24 divisors (see below), whose sum is σ = 62011709760. Its totient is φ = 13285958400.

The previous prime is 31003212199. The next prime is 31003212221. The reversal of 31003212212 is 21221230013.

It is a super-2 number, since 2×31003212212² (a number of 22 digits) contains 22 as substring.

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, 344087 + ... + 424737.

It is an arithmetic number, because the mean of its divisors is an integer number (2583821240).

Almost surely, 2^31003212212 is an apocalyptic number.

It is an amenable number.

31003212212 is an abundant number, since it is smaller than the sum of its proper divisors (31008497548).

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

31003212212 is a wasteful number, since it uses less digits than its factorization.

31003212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94391 (or 94389 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31003212212 its reverse (21221230013), we get a palindrome (52224442225).

The spelling of 31003212212 in words is "thirty-one billion, three million, two hundred twelve thousand, two hundred twelve".