123232343140 has 12 divisors (see below), whose sum is σ = 258787920636. Its totient is φ = 49292937248.

The previous prime is 123232343111. The next prime is 123232343173. The reversal of 123232343140 is 41343232321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 56862217764 + 66370125376 = 238458^2 + 257624^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123232343099 and 123232343108.

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, 3080808559 + ... + 3080808598.

It is an arithmetic number, because the mean of its divisors is an integer number (21565660053).

Almost surely, 2^123232343140 is an apocalyptic number.

123232343140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123232343140 is an abundant number, since it is smaller than the sum of its proper divisors (135555577496).

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

123232343140 is a wasteful number, since it uses less digits than its factorization.

123232343140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6161617166 (or 6161617164 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 123232343140 its reverse (41343232321), we get a palindrome (164575575461).

The spelling of 123232343140 in words is "one hundred twenty-three billion, two hundred thirty-two million, three hundred forty-three thousand, one hundred forty".