102911285563 has 4 divisors (see below), whose sum is σ = 102913833528. Its totient is φ = 102908737600.

The previous prime is 102911285483. The next prime is 102911285599. The reversal of 102911285563 is 365582119201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365582119201 = 13 ⋅28121701477.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102911285563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102911289563) 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, 1212406 + ... + 1294507.

It is an arithmetic number, because the mean of its divisors is an integer number (25728458382).

Almost surely, 2^102911285563 is an apocalyptic number.

102911285563 is a deficient number, since it is larger than the sum of its proper divisors (2547965).

102911285563 is an equidigital number, since it uses as much as digits as its factorization.

102911285563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547964.

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 102911285563 in words is "one hundred two billion, nine hundred eleven million, two hundred eighty-five thousand, five hundred sixty-three".