100420333442 has 96 divisors (see below), whose sum is σ = 190003544640. Its totient is φ = 39211032960.

The previous prime is 100420333441. The next prime is 100420333457. The reversal of 100420333442 is 244333024001.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (100420333441) 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 47 ways as a sum of consecutive naturals, for example, 5588909 + ... + 5606847.

It is an arithmetic number, because the mean of its divisors is an integer number (1979203590).

Almost surely, 2^100420333442 is an apocalyptic number.

100420333442 is a deficient number, since it is larger than the sum of its proper divisors (89583211198).

100420333442 is a wasteful number, since it uses less digits than its factorization.

100420333442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18048 (or 18025 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 100420333442 its reverse (244333024001), we get a palindrome (344753357443).

The spelling of 100420333442 in words is "one hundred billion, four hundred twenty million, three hundred thirty-three thousand, four hundred forty-two".