42345124501 has 4 divisors (see below), whose sum is σ = 42347061900. Its totient is φ = 42343187104.

The previous prime is 42345124499. The next prime is 42345124541. The reversal of 42345124501 is 10542154324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1520922001 + 40824202500 = 38999^2 + 202050^2 .

It is a cyclic number.

It is not a de Polignac number, because 42345124501 - 2¹ = 42345124499 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 (42345124541) 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, 935536 + ... + 979753.

It is an arithmetic number, because the mean of its divisors is an integer number (10586765475).

Almost surely, 2^42345124501 is an apocalyptic number.

It is an amenable number.

42345124501 is a deficient number, since it is larger than the sum of its proper divisors (1937399).

42345124501 is a wasteful number, since it uses less digits than its factorization.

42345124501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937398.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 42345124501 its reverse (10542154324), we get a palindrome (52887278825).

The spelling of 42345124501 in words is "forty-two billion, three hundred forty-five million, one hundred twenty-four thousand, five hundred one".