42040032331331 has 2 divisors, whose sum is σ = 42040032331332. Its totient is φ = 42040032331330.

The previous prime is 42040032331301. The next prime is 42040032331357. The reversal of 42040032331331 is 13313323004024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42040032331331 is a prime.

It is a super-2 number, since 2×42040032331331² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42040032331294 and 42040032331303.

It is not a weakly prime, because it can be changed into another prime (42040032331301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21020016165665 + 21020016165666.

It is an arithmetic number, because the mean of its divisors is an integer number (21020016165666).

Almost surely, 2^{42040032331331} is an apocalyptic number.

42040032331331 is a deficient number, since it is larger than the sum of its proper divisors (1).

42040032331331 is an equidigital number, since it uses as much as digits as its factorization.

42040032331331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 42040032331331 its reverse (13313323004024), we get a palindrome (55353355335355).

The spelling of 42040032331331 in words is "forty-two trillion, forty billion, thirty-two million, three hundred thirty-one thousand, three hundred thirty-one".