101440012 has 12 divisors (see below), whose sum is σ = 186863320. Its totient is φ = 48050496.

The previous prime is 101439983. The next prime is 101440013. The reversal of 101440012 is 210044101.

It is a junction number, because it is equal to n+sod(n) for n = 101439974 and 101440001.

It is not an unprimeable number, because it can be changed into a prime (101440013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667293 + ... + 667444.

Almost surely, 2^101440012 is an apocalyptic number.

It is an amenable number.

101440012 is a deficient number, since it is larger than the sum of its proper divisors (85423308).

101440012 is a wasteful number, since it uses less digits than its factorization.

101440012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334760 (or 1334758 counting only the distinct ones).

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

The square root of 101440012 is about 10071.7432453374. The cubic root of 101440012 is about 466.3762549120.

Adding to 101440012 its reverse (210044101), we get a palindrome (311484113).

The spelling of 101440012 in words is "one hundred one million, four hundred forty thousand, twelve".