102019272911 has 4 divisors (see below), whose sum is σ = 103029364824. Its totient is φ = 101009181000.

The previous prime is 102019272877. The next prime is 102019272941. The reversal of 102019272911 is 119272910201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119272910201 = 25819 ⋅4619579.

It is a cyclic number.

It is not a de Polignac number, because 102019272911 - 2²⁶ = 101952164047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102019272941) 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, 505045805 + ... + 505046006.

It is an arithmetic number, because the mean of its divisors is an integer number (25757341206).

Almost surely, 2^102019272911 is an apocalyptic number.

102019272911 is a deficient number, since it is larger than the sum of its proper divisors (1010091913).

102019272911 is a wasteful number, since it uses less digits than its factorization.

102019272911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010091912.

The product of its (nonzero) digits is 4536, while the sum is 35.

The spelling of 102019272911 in words is "one hundred two billion, nineteen million, two hundred seventy-two thousand, nine hundred eleven".