123351405015140 has 48 divisors (see below), whose sum is σ = 271641119687280. Its totient is φ = 46986572021760.

The previous prime is 123351405014983. The next prime is 123351405015149. The reversal of 123351405015140 is 41510504153321.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5127579821056 + 118223825194084 = 2264416^2 + 10873078^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123351405015140.

It is not an unprimeable number, because it can be changed into a prime (123351405015149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1456634621 + ... + 1456719300.

It is an arithmetic number, because the mean of its divisors is an integer number (5659189993485).

Almost surely, 2^{123351405015140} is an apocalyptic number.

123351405015140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123351405015140 is an abundant number, since it is smaller than the sum of its proper divisors (148289714672140).

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

123351405015140 is a wasteful number, since it uses less digits than its factorization.

123351405015140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913354032 (or 2913354030 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 123351405015140 its reverse (41510504153321), we get a palindrome (164861909168461).

The spelling of 123351405015140 in words is "one hundred twenty-three trillion, three hundred fifty-one billion, four hundred five million, fifteen thousand, one hundred forty".