42400020113 has 4 divisors (see below), whose sum is σ = 46254567408. Its totient is φ = 38545472820.

The previous prime is 42400020101. The next prime is 42400020137. The reversal of 42400020113 is 31102000424.

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 a cyclic number.

It is not a de Polignac number, because 42400020113 - 2⁶ = 42400020049 is a prime.

It is a super-5 number, since 5×42400020113⁵ (a number of 54 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42400020091 and 42400020100.

It is not an unprimeable number, because it can be changed into a prime (42400020413) 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, 1927273631 + ... + 1927273652.

It is an arithmetic number, because the mean of its divisors is an integer number (11563641852).

Almost surely, 2^42400020113 is an apocalyptic number.

It is an amenable number.

42400020113 is a deficient number, since it is larger than the sum of its proper divisors (3854547295).

42400020113 is a wasteful number, since it uses less digits than its factorization.

42400020113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3854547294.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 42400020113 its reverse (31102000424), we get a palindrome (73502020537).

The spelling of 42400020113 in words is "forty-two billion, four hundred million, twenty thousand, one hundred thirteen".