102009191011 has 8 divisors (see below), whose sum is σ = 125549773664. Its totient is φ = 80710568640.

The previous prime is 102009190973. The next prime is 102009191017. The reversal of 102009191011 is 110191900201.

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

It is not a de Polignac number, because 102009191011 - 2¹⁵ = 102009158243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102009191017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560489970 + ... + 560490151.

It is an arithmetic number, because the mean of its divisors is an integer number (15693721708).

Almost surely, 2^102009191011 is an apocalyptic number.

102009191011 is a deficient number, since it is larger than the sum of its proper divisors (23540582653).

102009191011 is a wasteful number, since it uses less digits than its factorization.

102009191011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120980141.

The product of its (nonzero) digits is 162, while the sum is 25.

The spelling of 102009191011 in words is "one hundred two billion, nine million, one hundred ninety-one thousand, eleven".