123165145402263 has 6 divisors (see below), whose sum is σ = 177905210025504. Its totient is φ = 82110096934836.

The previous prime is 123165145402261. The next prime is 123165145402303. The reversal of 123165145402263 is 362204541561321.

123165145402263 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 6 + 514 + 54 + 0 + 22 + 63 = 666.

123165145402263 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 123165145402263 - 2¹ = 123165145402261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123165145402261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6842508077895 + ... + 6842508077912.

It is an arithmetic number, because the mean of its divisors is an integer number (29650868337584).

Almost surely, 2^{123165145402263} is an apocalyptic number.

123165145402263 is a deficient number, since it is larger than the sum of its proper divisors (54740064623241).

123165145402263 is a wasteful number, since it uses less digits than its factorization.

123165145402263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13685016155813 (or 13685016155810 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

Adding to 123165145402263 its reverse (362204541561321), we get a palindrome (485369686963584).

The spelling of 123165145402263 in words is "one hundred twenty-three trillion, one hundred sixty-five billion, one hundred forty-five million, four hundred two thousand, two hundred sixty-three".