123243351543510 has 64 divisors (see below), whose sum is σ = 322969262563584. Its totient is φ = 29849790915200.

The previous prime is 123243351543509. The next prime is 123243351543511. The reversal of 123243351543510 is 15345153342321.

It is an interprime number because it is at equal distance from previous prime (123243351543509) and next prime (123243351543511).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123243351543511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170797029 + ... + 171517088.

It is an arithmetic number, because the mean of its divisors is an integer number (5046394727556).

Almost surely, 2^{123243351543510} is an apocalyptic number.

123243351543510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123243351543510 is an abundant number, since it is smaller than the sum of its proper divisors (199725911020074).

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

123243351543510 is a wasteful number, since it uses less digits than its factorization.

123243351543510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342315229.

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 123243351543510 in words is "one hundred twenty-three trillion, two hundred forty-three billion, three hundred fifty-one million, five hundred forty-three thousand, five hundred ten".