123340301440 has 32 divisors (see below), whose sum is σ = 294860409660. Its totient is φ = 49336120320.

The previous prime is 123340301437. The next prime is 123340301443. The reversal of 123340301440 is 44103043321.

It is an interprime number because it is at equal distance from previous prime (123340301437) and next prime (123340301443).

It can be written as a sum of positive squares in 2 ways, for example, as 122718497344 + 621804096 = 350312^2 + 24936^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (123340301443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96358971 + ... + 96360250.

Almost surely, 2^123340301440 is an apocalyptic number.

123340301440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123340301440 is an abundant number, since it is smaller than the sum of its proper divisors (171520108220).

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

123340301440 is an equidigital number, since it uses as much as digits as its factorization.

123340301440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192719240 (or 192719228 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 123340301440 its reverse (44103043321), we get a palindrome (167443344761).

The spelling of 123340301440 in words is "one hundred twenty-three billion, three hundred forty million, three hundred one thousand, four hundred forty".