101210436065 has 4 divisors (see below), whose sum is σ = 121452523284. Its totient is φ = 80968348848.

The previous prime is 101210436023. The next prime is 101210436113. The reversal of 101210436065 is 560634012101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43759619344 + 57450816721 = 209188^2 + 239689^2 .

It is a cyclic number.

It is not a de Polignac number, because 101210436065 - 2¹⁶ = 101210370529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10121043602 + ... + 10121043611.

It is an arithmetic number, because the mean of its divisors is an integer number (30363130821).

Almost surely, 2^101210436065 is an apocalyptic number.

It is an amenable number.

101210436065 is a deficient number, since it is larger than the sum of its proper divisors (20242087219).

101210436065 is an equidigital number, since it uses as much as digits as its factorization.

101210436065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20242087218.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 101210436065 its reverse (560634012101), we get a palindrome (661844448166).

The spelling of 101210436065 in words is "one hundred one billion, two hundred ten million, four hundred thirty-six thousand, sixty-five".