135723940123042 has 32 divisors (see below), whose sum is σ = 204104995617600. Its totient is φ = 67689177050880.

The previous prime is 135723940123021. The next prime is 135723940123061. The reversal of 135723940123042 is 240321049327531.

It is a junction number, because it is equal to n+sod(n) for n = 135723940122983 and 135723940123001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6494268709 + ... + 6494289607.

It is an arithmetic number, because the mean of its divisors is an integer number (6378281113050).

Almost surely, 2^{135723940123042} is an apocalyptic number.

135723940123042 is a deficient number, since it is larger than the sum of its proper divisors (68381055494558).

135723940123042 is a wasteful number, since it uses less digits than its factorization.

135723940123042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26146.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 135723940123042 in words is "one hundred thirty-five trillion, seven hundred twenty-three billion, nine hundred forty million, one hundred twenty-three thousand, forty-two".