1235012101 has 2 divisors, whose sum is σ = 1235012102. Its totient is φ = 1235012100.

The previous prime is 1235012099. The next prime is 1235012113. The reversal of 1235012101 is 1012105321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 823977025 + 411035076 = 28705^2 + 20274^2 .

It is a cyclic number.

It is not a de Polignac number, because 1235012101 - 2¹ = 1235012099 is a prime.

Together with 1235012099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1235012171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617506050 + 617506051.

It is an arithmetic number, because the mean of its divisors is an integer number (617506051).

Almost surely, 2^1235012101 is an apocalyptic number.

It is an amenable number.

1235012101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235012101 is an equidigital number, since it uses as much as digits as its factorization.

1235012101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1235012101 is about 35142.7389513111. The cubic root of 1235012101 is about 1072.8946285149.

Adding to 1235012101 its reverse (1012105321), we get a palindrome (2247117422).

The spelling of 1235012101 in words is "one billion, two hundred thirty-five million, twelve thousand, one hundred one".