42100140517 has 2 divisors, whose sum is σ = 42100140518. Its totient is φ = 42100140516.

The previous prime is 42100140491. The next prime is 42100140529. The reversal of 42100140517 is 71504100124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29520050596 + 12580089921 = 171814^2 + 112161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42100140517 is a prime.

It is a super-3 number, since 3×42100140517³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 42100140491 and 42100140500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42100140557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21050070258 + 21050070259.

It is an arithmetic number, because the mean of its divisors is an integer number (21050070259).

Almost surely, 2^42100140517 is an apocalyptic number.

It is an amenable number.

42100140517 is a deficient number, since it is larger than the sum of its proper divisors (1).

42100140517 is an equidigital number, since it uses as much as digits as its factorization.

42100140517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 25.

The spelling of 42100140517 in words is "forty-two billion, one hundred million, one hundred forty thousand, five hundred seventeen".