123302440224340 has 24 divisors (see below), whose sum is σ = 278853210969480. Its totient is φ = 45527054851968.

The previous prime is 123302440224269. The next prime is 123302440224347. The reversal of 123302440224340 is 43422044203321.

It can be written as a sum of positive squares in 4 ways, for example, as 10542762229444 + 112759677994896 = 3246962^2 + 10618836^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123302440224296 and 123302440224305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123302440224347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237120077095 + ... + 237120077614.

It is an arithmetic number, because the mean of its divisors is an integer number (11618883790395).

Almost surely, 2^{123302440224340} is an apocalyptic number.

123302440224340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123302440224340 is an abundant number, since it is smaller than the sum of its proper divisors (155550770745140).

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

123302440224340 is a wasteful number, since it uses less digits than its factorization.

123302440224340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474240154731 (or 474240154729 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 123302440224340 its reverse (43422044203321), we get a palindrome (166724484427661).

The spelling of 123302440224340 in words is "one hundred twenty-three trillion, three hundred two billion, four hundred forty million, two hundred twenty-four thousand, three hundred forty".