42151400121 has 8 divisors (see below), whose sum is σ = 56317273024. Its totient is φ = 28043230320.

The previous prime is 42151400113. The next prime is 42151400143. The reversal of 42151400121 is 12100415124.

42151400121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42151400121 - 2³ = 42151400113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42151400101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14424070 + ... + 14426991.

It is an arithmetic number, because the mean of its divisors is an integer number (7039659128).

Almost surely, 2^42151400121 is an apocalyptic number.

It is an amenable number.

42151400121 is a deficient number, since it is larger than the sum of its proper divisors (14165872903).

42151400121 is a wasteful number, since it uses less digits than its factorization.

42151400121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28851551.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 42151400121 its reverse (12100415124), we get a palindrome (54251815245).

The spelling of 42151400121 in words is "forty-two billion, one hundred fifty-one million, four hundred thousand, one hundred twenty-one".