100102021007 has 4 divisors (see below), whose sum is σ = 100136340696. Its totient is φ = 100067701320.

The previous prime is 100102020979. The next prime is 100102021031. The reversal of 100102021007 is 700120201001.

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

It is a cyclic number.

It is not a de Polignac number, because 100102021007 - 2³² = 95807053711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100102020982 and 100102021000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100102021067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17155469 + ... + 17161302.

It is an arithmetic number, because the mean of its divisors is an integer number (25034085174).

Almost surely, 2^100102021007 is an apocalyptic number.

100102021007 is a deficient number, since it is larger than the sum of its proper divisors (34319689).

100102021007 is an equidigital number, since it uses as much as digits as its factorization.

100102021007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34319688.

The product of its (nonzero) digits is 28, while the sum is 14.

Adding to 100102021007 its reverse (700120201001), we get a palindrome (800222222008).

The spelling of 100102021007 in words is "one hundred billion, one hundred two million, twenty-one thousand, seven".