100240000442 has 4 divisors (see below), whose sum is σ = 150360000666. Its totient is φ = 50120000220.

The previous prime is 100240000429. The next prime is 100240000453. The reversal of 100240000442 is 244000042001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 59238205321 + 41001795121 = 243389^2 + 202489^2 .

It is a super-2 number, since 2×100240000442² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100240000442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25060000109 + ... + 25060000112.

Almost surely, 2^100240000442 is an apocalyptic number.

100240000442 is a deficient number, since it is larger than the sum of its proper divisors (50120000224).

100240000442 is an equidigital number, since it uses as much as digits as its factorization.

100240000442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50120000223.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 100240000442 its reverse (244000042001), we get a palindrome (344240042443).

The spelling of 100240000442 in words is "one hundred billion, two hundred forty million, four hundred forty-two", and thus it is an aban number.