42161401003531 has 8 divisors (see below), whose sum is σ = 45132632654400. Its totient is φ = 39265390407240.

The previous prime is 42161401003459. The next prime is 42161401003567. The reversal of 42161401003531 is 13530010416124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42161401003531 - 2¹¹ = 42161401001483 is a prime.

It is a super-3 number, since 3×42161401003531³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42161401003493 and 42161401003502.

It is not an unprimeable number, because it can be changed into a prime (42161401003231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18805262485 + ... + 18805264726.

It is an arithmetic number, because the mean of its divisors is an integer number (5641579081800).

Almost surely, 2^{42161401003531} is an apocalyptic number.

42161401003531 is a deficient number, since it is larger than the sum of its proper divisors (2971231650869).

42161401003531 is a wasteful number, since it uses less digits than its factorization.

42161401003531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37610527289.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 42161401003531 its reverse (13530010416124), we get a palindrome (55691411419655).

The spelling of 42161401003531 in words is "forty-two trillion, one hundred sixty-one billion, four hundred one million, three thousand, five hundred thirty-one".