101031231212 has 24 divisors (see below), whose sum is σ = 179825073792. Its totient is φ = 49653763200.

The previous prime is 101031231209. The next prime is 101031231271. The reversal of 101031231212 is 212132130101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221573 + ... + 501155.

It is an arithmetic number, because the mean of its divisors is an integer number (7492711408).

Almost surely, 2^101031231212 is an apocalyptic number.

It is an amenable number.

101031231212 is a deficient number, since it is larger than the sum of its proper divisors (78793842580).

101031231212 is a wasteful number, since it uses less digits than its factorization.

101031231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281129 (or 281127 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 101031231212 its reverse (212132130101), we get a palindrome (313163361313).

The spelling of 101031231212 in words is "one hundred one billion, thirty-one million, two hundred thirty-one thousand, two hundred twelve".