42043521035331 has 10 divisors (see below), whose sum is σ = 62805753645492. Its totient is φ = 28029014023500.

The previous prime is 42043521035317. The next prime is 42043521035359. The reversal of 42043521035331 is 13353012534024.

42043521035331 is a `hidden beast` number, since 4 + 2 + 0 + 435 + 210 + 3 + 5 + 3 + 3 + 1 = 666.

It is not a de Polignac number, because 42043521035331 - 2¹⁹ = 42043520511043 is a prime.

It is a super-2 number, since 2×42043521035331² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42043561035331) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 259527907545 + ... + 259527907706.

Almost surely, 2^{42043521035331} is an apocalyptic number.

42043521035331 is a deficient number, since it is larger than the sum of its proper divisors (20762232610161).

42043521035331 is an equidigital number, since it uses as much as digits as its factorization.

42043521035331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519055815263 (or 519055815254 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 42043521035331 its reverse (13353012534024), we get a palindrome (55396533569355).

The spelling of 42043521035331 in words is "forty-two trillion, forty-three billion, five hundred twenty-one million, thirty-five thousand, three hundred thirty-one".