42151421101 has 32 divisors (see below), whose sum is σ = 44355991680. Its totient is φ = 40024018944.

The previous prime is 42151421087. The next prime is 42151421107. The reversal of 42151421101 is 10112415124.

It is a happy number.

42151421101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42151421101 - 2⁷ = 42151420973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42151421107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108358215 + ... + 108358603.

It is an arithmetic number, because the mean of its divisors is an integer number (1386124740).

Almost surely, 2^42151421101 is an apocalyptic number.

It is an amenable number.

42151421101 is a deficient number, since it is larger than the sum of its proper divisors (2204570579).

42151421101 is a wasteful number, since it uses less digits than its factorization.

42151421101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925.

The product of its (nonzero) digits is 320, while the sum is 22.

Adding to 42151421101 its reverse (10112415124), we get a palindrome (52263836225).

The spelling of 42151421101 in words is "forty-two billion, one hundred fifty-one million, four hundred twenty-one thousand, one hundred one".