123052215553502 has 4 divisors (see below), whose sum is σ = 184578323330256. Its totient is φ = 61526107776750.

The previous prime is 123052215553297. The next prime is 123052215553513. The reversal of 123052215553502 is 205355512250321.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 123052215553502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30763053888374 + ... + 30763053888377.

It is an arithmetic number, because the mean of its divisors is an integer number (46144580832564).

Almost surely, 2^{123052215553502} is an apocalyptic number.

123052215553502 is a deficient number, since it is larger than the sum of its proper divisors (61526107776754).

123052215553502 is an equidigital number, since it uses as much as digits as its factorization.

123052215553502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61526107776753.

The product of its (nonzero) digits is 450000, while the sum is 41.

The spelling of 123052215553502 in words is "one hundred twenty-three trillion, fifty-two billion, two hundred fifteen million, five hundred fifty-three thousand, five hundred two".