123375040340 has 12 divisors (see below), whose sum is σ = 259087584756. Its totient is φ = 49350016128.

The previous prime is 123375040333. The next prime is 123375040351. The reversal of 123375040340 is 43040573321.

It can be written as a sum of positive squares in 2 ways, for example, as 16578107536 + 106796932804 = 128756^2 + 326798^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123375040297 and 123375040306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3084375989 + ... + 3084376028.

It is an arithmetic number, because the mean of its divisors is an integer number (21590632063).

Almost surely, 2^123375040340 is an apocalyptic number.

123375040340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123375040340 is an abundant number, since it is smaller than the sum of its proper divisors (135712544416).

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

123375040340 is a wasteful number, since it uses less digits than its factorization.

123375040340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6168752026 (or 6168752024 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

The spelling of 123375040340 in words is "one hundred twenty-three billion, three hundred seventy-five million, forty thousand, three hundred forty".