42031127 has 2 divisors, whose sum is σ = 42031128. Its totient is φ = 42031126.

The previous prime is 42031111. The next prime is 42031139. The reversal of 42031127 is 72113024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42031127 - 2⁴ = 42031111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42031099 and 42031108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42031727) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21015563 + 21015564.

It is an arithmetic number, because the mean of its divisors is an integer number (21015564).

Almost surely, 2^42031127 is an apocalyptic number.

42031127 is a deficient number, since it is larger than the sum of its proper divisors (1).

42031127 is an equidigital number, since it uses as much as digits as its factorization.

42031127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 42031127 is about 6483.1417538104. The cubic root of 42031127 is about 347.6885149356.

The spelling of 42031127 in words is "forty-two million, thirty-one thousand, one hundred twenty-seven".