102019200091 has 8 divisors (see below), whose sum is σ = 104476596224. Its totient is φ = 99565661160.

The previous prime is 102019200067. The next prime is 102019200119. The reversal of 102019200091 is 190002910201.

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

It is a cyclic number.

It is not a de Polignac number, because 102019200091 - 2¹³ = 102019191899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102019200991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910731 + ... + 1016596.

It is an arithmetic number, because the mean of its divisors is an integer number (13059574528).

Almost surely, 2^102019200091 is an apocalyptic number.

102019200091 is a deficient number, since it is larger than the sum of its proper divisors (2457396133).

102019200091 is a wasteful number, since it uses less digits than its factorization.

102019200091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928601.

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

The spelling of 102019200091 in words is "one hundred two billion, nineteen million, two hundred thousand, ninety-one".