2015042101 has 2 divisors, whose sum is σ = 2015042102. Its totient is φ = 2015042100.

The previous prime is 2015042077. The next prime is 2015042153. The reversal of 2015042101 is 1012405102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1990052100 + 24990001 = 44610^2 + 4999^2 .

It is a cyclic number.

It is not a de Polignac number, because 2015042101 - 2⁵ = 2015042069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2015042171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007521050 + 1007521051.

It is an arithmetic number, because the mean of its divisors is an integer number (1007521051).

Almost surely, 2^2015042101 is an apocalyptic number.

It is an amenable number.

2015042101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015042101 is an equidigital number, since it uses as much as digits as its factorization.

2015042101 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2015042101 is about 44889.2203206961. The cubic root of 2015042101 is about 1263.0718073263.

Adding to 2015042101 its reverse (1012405102), we get a palindrome (3027447203).

The spelling of 2015042101 in words is "two billion, fifteen million, forty-two thousand, one hundred one".