42031306230553 has 2 divisors, whose sum is σ = 42031306230554. Its totient is φ = 42031306230552.

The previous prime is 42031306230503. The next prime is 42031306230577. The reversal of 42031306230553 is 35503260313024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24636501009289 + 17394805221264 = 4963517^2 + 4170708^2 .

It is a cyclic number.

It is not a de Polignac number, because 42031306230553 - 2³⁷ = 41893867277081 is a prime.

It is not a weakly prime, because it can be changed into another prime (42031306230503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21015653115276 + 21015653115277.

It is an arithmetic number, because the mean of its divisors is an integer number (21015653115277).

Almost surely, 2^{42031306230553} is an apocalyptic number.

It is an amenable number.

42031306230553 is a deficient number, since it is larger than the sum of its proper divisors (1).

42031306230553 is an equidigital number, since it uses as much as digits as its factorization.

42031306230553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 37.

Adding to 42031306230553 its reverse (35503260313024), we get a palindrome (77534566543577).

The spelling of 42031306230553 in words is "forty-two trillion, thirty-one billion, three hundred six million, two hundred thirty thousand, five hundred fifty-three".