100507060021 has 4 divisors (see below), whose sum is σ = 100542490092. Its totient is φ = 100471629952.

The previous prime is 100507059953. The next prime is 100507060067. The reversal of 100507060021 is 120060705001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120060705001 = 63131 ⋅1901771.

It can be written as a sum of positive squares in 2 ways, for example, as 31212288900 + 69294771121 = 176670^2 + 263239^2 .

It is a cyclic number.

It is not a de Polignac number, because 100507060021 - 2⁹ = 100507059509 is a prime.

It is a super-2 number, since 2×100507060021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100507059974 and 100507060001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100507060081) 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, 17710780 + ... + 17716453.

It is an arithmetic number, because the mean of its divisors is an integer number (25135622523).

Almost surely, 2^100507060021 is an apocalyptic number.

It is an amenable number.

100507060021 is a deficient number, since it is larger than the sum of its proper divisors (35430071).

100507060021 is an equidigital number, since it uses as much as digits as its factorization.

100507060021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35430070.

The product of its (nonzero) digits is 420, while the sum is 22.

Adding to 100507060021 its reverse (120060705001), we get a palindrome (220567765022).

The spelling of 100507060021 in words is "one hundred billion, five hundred seven million, sixty thousand, twenty-one".