42120033131 has 16 divisors (see below), whose sum is σ = 48846412800. Its totient is φ = 35916444000.

The previous prime is 42120033091. The next prime is 42120033133. The reversal of 42120033131 is 13133002124.

It is a cyclic number.

It is not a de Polignac number, because 42120033131 - 2¹⁰ = 42120032107 is a prime.

It is a super-2 number, since 2×42120033131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42120033133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 976571 + ... + 1018788.

It is an arithmetic number, because the mean of its divisors is an integer number (3052900800).

Almost surely, 2^42120033131 is an apocalyptic number.

42120033131 is a deficient number, since it is larger than the sum of its proper divisors (6726379669).

42120033131 is a wasteful number, since it uses less digits than its factorization.

42120033131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995490.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 42120033131 its reverse (13133002124), we get a palindrome (55253035255).

The spelling of 42120033131 in words is "forty-two billion, one hundred twenty million, thirty-three thousand, one hundred thirty-one".