542031101 has 2 divisors, whose sum is σ = 542031102. Its totient is φ = 542031100.

The previous prime is 542031097. The next prime is 542031121. The reversal of 542031101 is 101130245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 353628025 + 188403076 = 18805^2 + 13726^2 .

It is a cyclic number.

It is not a de Polignac number, because 542031101 - 2² = 542031097 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542031101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542031121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271015550 + 271015551.

It is an arithmetic number, because the mean of its divisors is an integer number (271015551).

Almost surely, 2^542031101 is an apocalyptic number.

It is an amenable number.

542031101 is a deficient number, since it is larger than the sum of its proper divisors (1).

542031101 is an equidigital number, since it uses as much as digits as its factorization.

542031101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 542031101 is about 23281.5613952329. The cubic root of 542031101 is about 815.3449809803.

Adding to 542031101 its reverse (101130245), we get a palindrome (643161346).

The spelling of 542031101 in words is "five hundred forty-two million, thirty-one thousand, one hundred one".