101231012 has 12 divisors (see below), whose sum is σ = 186478320. Its totient is φ = 47951496.

The previous prime is 101230999. The next prime is 101231021. The reversal of 101231012 is 210132101.

It is a junction number, because it is equal to n+sod(n) for n = 101230984 and 101231002.

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, 665918 + ... + 666069.

It is an arithmetic number, because the mean of its divisors is an integer number (15539860).

Almost surely, 2^101231012 is an apocalyptic number.

It is an amenable number.

101231012 is a deficient number, since it is larger than the sum of its proper divisors (85247308).

101231012 is a wasteful number, since it uses less digits than its factorization.

101231012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332010 (or 1332008 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 101231012 is about 10061.3623332032. The cubic root of 101231012 is about 466.0557382045.

Adding to 101231012 its reverse (210132101), we get a palindrome (311363113).

The spelling of 101231012 in words is "one hundred one million, two hundred thirty-one thousand, twelve".