123410340340 has 24 divisors (see below), whose sum is σ = 296184817152. Its totient is φ = 42312116640.

The previous prime is 123410340337. The next prime is 123410340359. The reversal of 123410340340 is 43043014321.

It is a super-2 number, since 2×123410340340² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440751076 + ... + 440751355.

It is an arithmetic number, because the mean of its divisors is an integer number (12341034048).

Almost surely, 2^123410340340 is an apocalyptic number.

123410340340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123410340340 is an abundant number, since it is smaller than the sum of its proper divisors (172774476812).

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

123410340340 is a wasteful number, since it uses less digits than its factorization.

123410340340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881502447 (or 881502445 counting only the distinct ones).

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

Adding to 123410340340 its reverse (43043014321), we get a palindrome (166453354661).

The spelling of 123410340340 in words is "one hundred twenty-three billion, four hundred ten million, three hundred forty thousand, three hundred forty".