102723481266 has 128 divisors (see below), whose sum is σ = 256255180800. Its totient is φ = 26788942080.

The previous prime is 102723481207. The next prime is 102723481327. The reversal of 102723481266 is 662184327201.

It is a super-2 number, since 2×102723481266² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5655936 + ... + 5674068.

It is an arithmetic number, because the mean of its divisors is an integer number (2001993600).

Almost surely, 2^102723481266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102723481266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128127590400).

102723481266 is an abundant number, since it is smaller than the sum of its proper divisors (153531699534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102723481266 is a wasteful number, since it uses less digits than its factorization.

102723481266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18424.

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 102723481266 in words is "one hundred two billion, seven hundred twenty-three million, four hundred eighty-one thousand, two hundred sixty-six".