100921091002 has 8 divisors (see below), whose sum is σ = 151403354676. Its totient is φ = 50453306112.

The previous prime is 100921090979. The next prime is 100921091003. The reversal of 100921091002 is 200190129001.

It can be written as a sum of positive squares in 2 ways, for example, as 91197356121 + 9723734881 = 301989^2 + 98609^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (100921091003) 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, 3602253 + ... + 3630160.

Almost surely, 2^100921091002 is an apocalyptic number.

100921091002 is a deficient number, since it is larger than the sum of its proper divisors (50482263674).

100921091002 is an equidigital number, since it uses as much as digits as its factorization.

100921091002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7239392.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 100921091002 in words is "one hundred billion, nine hundred twenty-one million, ninety-one thousand, two".