120542101 has 2 divisors, whose sum is σ = 120542102. Its totient is φ = 120542100.

The previous prime is 120542089. The next prime is 120542129. The reversal of 120542101 is 101245021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118919025 + 1623076 = 10905^2 + 1274^2 .

It is a cyclic number.

It is not a de Polignac number, because 120542101 - 2⁵ = 120542069 is a prime.

It is a super-2 number, since 2×120542101² = 29060796226988402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120542131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60271050 + 60271051.

It is an arithmetic number, because the mean of its divisors is an integer number (60271051).

Almost surely, 2^120542101 is an apocalyptic number.

It is an amenable number.

120542101 is a deficient number, since it is larger than the sum of its proper divisors (1).

120542101 is an equidigital number, since it uses as much as digits as its factorization.

120542101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 120542101 is about 10979.1666805819. The cubic root of 120542101 is about 493.9840414564.

Adding to 120542101 its reverse (101245021), we get a palindrome (221787122).

The spelling of 120542101 in words is "one hundred twenty million, five hundred forty-two thousand, one hundred one".