101242012 has 6 divisors (see below), whose sum is σ = 177173528. Its totient is φ = 50621004.

The previous prime is 101241983. The next prime is 101242019. The reversal of 101242012 is 210242101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101241983 and 101242001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101242019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12655248 + ... + 12655255.

Almost surely, 2^101242012 is an apocalyptic number.

It is an amenable number.

101242012 is a deficient number, since it is larger than the sum of its proper divisors (75931516).

101242012 is a wasteful number, since it uses less digits than its factorization.

101242012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25310507 (or 25310505 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 101242012 is about 10061.9089640088. The cubic root of 101242012 is about 466.0726184975.

Adding to 101242012 its reverse (210242101), we get a palindrome (311484113).

The spelling of 101242012 in words is "one hundred one million, two hundred forty-two thousand, twelve".