126423540140 has 24 divisors (see below), whose sum is σ = 265532087520. Its totient is φ = 50561291648.

The previous prime is 126423540121. The next prime is 126423540143. The reversal of 126423540140 is 41045324621.

It is a junction number, because it is equal to n+sod(n) for n = 126423540097 and 126423540106.

It is not an unprimeable number, because it can be changed into a prime (126423540143) 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, 379385 + ... + 629904.

It is an arithmetic number, because the mean of its divisors is an integer number (11063836980).

Almost surely, 2^126423540140 is an apocalyptic number.

126423540140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126423540140 is an abundant number, since it is smaller than the sum of its proper divisors (139108547380).

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

126423540140 is a wasteful number, since it uses less digits than its factorization.

126423540140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015561 (or 1015559 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 126423540140 its reverse (41045324621), we get a palindrome (167468864761).

The spelling of 126423540140 in words is "one hundred twenty-six billion, four hundred twenty-three million, five hundred forty thousand, one hundred forty".