101042001240 has 64 divisors (see below), whose sum is σ = 303651560160. Its totient is φ = 26897817600.

The previous prime is 101042001163. The next prime is 101042001241. The reversal of 101042001240 is 42100240101.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101042001241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660411 + ... + 798890.

Almost surely, 2^101042001240 is an apocalyptic number.

101042001240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101042001240 is an abundant number, since it is smaller than the sum of its proper divisors (202609558920).

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

101042001240 is a wasteful number, since it uses less digits than its factorization.

101042001240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459892 (or 1459888 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 101042001240 its reverse (42100240101), we get a palindrome (143142241341).

The spelling of 101042001240 in words is "one hundred one billion, forty-two million, one thousand, two hundred forty".