100420101442 has 8 divisors (see below), whose sum is σ = 150633737100. Its totient is φ = 50208855744.

The previous prime is 100420101437. The next prime is 100420101449. The reversal of 100420101442 is 244101024001.

It can be written as a sum of positive squares in 2 ways, for example, as 91996349481 + 8423751961 = 303309^2 + 91781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (100420101449) 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, 488467 + ... + 662902.

Almost surely, 2^100420101442 is an apocalyptic number.

100420101442 is a deficient number, since it is larger than the sum of its proper divisors (50213635658).

100420101442 is a wasteful number, since it uses less digits than its factorization.

100420101442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194980.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 100420101442 its reverse (244101024001), we get a palindrome (344521125443).

The spelling of 100420101442 in words is "one hundred billion, four hundred twenty million, one hundred one thousand, four hundred forty-two".