101421003017 has 4 divisors (see below), whose sum is σ = 101504615940. Its totient is φ = 101337390096.

The previous prime is 101421002951. The next prime is 101421003037. The reversal of 101421003017 is 710300124101.

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 34330160656 + 67090842361 = 185284^2 + 259019^2 .

It is a cyclic number.

It is not a de Polignac number, because 101421003017 - 2¹⁸ = 101420740873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101421003017.

It is not an unprimeable number, because it can be changed into a prime (101421003037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41804642 + ... + 41807067.

It is an arithmetic number, because the mean of its divisors is an integer number (25376153985).

Almost surely, 2^101421003017 is an apocalyptic number.

It is an amenable number.

101421003017 is a deficient number, since it is larger than the sum of its proper divisors (83612923).

101421003017 is an equidigital number, since it uses as much as digits as its factorization.

101421003017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83612922.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 101421003017 its reverse (710300124101), we get a palindrome (811721127118).

The spelling of 101421003017 in words is "one hundred one billion, four hundred twenty-one million, three thousand, seventeen".