42150021105 has 16 divisors (see below), whose sum is σ = 67504348800. Its totient is φ = 22458572928.

The previous prime is 42150021079. The next prime is 42150021113. The reversal of 42150021105 is 50112005124.

42150021105 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 42150021105 - 2¹² = 42150017009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1323637 + ... + 1355106.

It is an arithmetic number, because the mean of its divisors is an integer number (4219021800).

Almost surely, 2^42150021105 is an apocalyptic number.

It is an amenable number.

42150021105 is a deficient number, since it is larger than the sum of its proper divisors (25354327695).

42150021105 is a wasteful number, since it uses less digits than its factorization.

42150021105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679800.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 42150021105 its reverse (50112005124), we get a palindrome (92262026229).

The spelling of 42150021105 in words is "forty-two billion, one hundred fifty million, twenty-one thousand, one hundred five".