42115302101 has 4 divisors (see below), whose sum is σ = 42115742604. Its totient is φ = 42114861600.

The previous prime is 42115302083. The next prime is 42115302107. The reversal of 42115302101 is 10120351124.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 33041787076 + 9073515025 = 181774^2 + 95255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42115302101 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 (42115302107) 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, 9830 + ... + 290391.

It is an arithmetic number, because the mean of its divisors is an integer number (10528935651).

Almost surely, 2^42115302101 is an apocalyptic number.

It is an amenable number.

42115302101 is a deficient number, since it is larger than the sum of its proper divisors (440503).

42115302101 is a wasteful number, since it uses less digits than its factorization.

42115302101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440502.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 42115302101 its reverse (10120351124), we get a palindrome (52235653225).

The spelling of 42115302101 in words is "forty-two billion, one hundred fifteen million, three hundred two thousand, one hundred one".