42124101 has 4 divisors (see below), whose sum is σ = 56165472. Its totient is φ = 28082732.

The previous prime is 42124091. The next prime is 42124111. The reversal of 42124101 is 10142124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (42124091) and next prime (42124111).

It is a cyclic number.

It is not a de Polignac number, because 42124101 - 2⁷ = 42123973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42124111) 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, 7020681 + ... + 7020686.

It is an arithmetic number, because the mean of its divisors is an integer number (14041368).

Almost surely, 2^42124101 is an apocalyptic number.

It is an amenable number.

42124101 is a deficient number, since it is larger than the sum of its proper divisors (14041371).

42124101 is a wasteful number, since it uses less digits than its factorization.

42124101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14041370.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 42124101 is about 6490.3082361318. The cubic root of 42124101 is about 347.9446916330.

Adding to 42124101 its reverse (10142124), we get a palindrome (52266225).

It can be divided in two parts, 42124 and 101, that multiplied together give a palindrome (4254524).

The spelling of 42124101 in words is "forty-two million, one hundred twenty-four thousand, one hundred one".