140123123342355 has 32 divisors (see below), whose sum is σ = 238333441731840. Its totient is φ = 70098071068800.

The previous prime is 140123123342353. The next prime is 140123123342407. The reversal of 140123123342355 is 553243321321041.

It is a happy number.

It is not a de Polignac number, because 140123123342355 - 2¹ = 140123123342353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140123123342353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2433932017 + ... + 2433989586.

It is an arithmetic number, because the mean of its divisors is an integer number (7447920054120).

Almost surely, 2^{140123123342355} is an apocalyptic number.

140123123342355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140123123342355 is a deficient number, since it is larger than the sum of its proper divisors (98210318389485).

140123123342355 is a wasteful number, since it uses less digits than its factorization.

140123123342355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4867921731.

The product of its (nonzero) digits is 259200, while the sum is 39.

Adding to 140123123342355 its reverse (553243321321041), we get a palindrome (693366444663396).

The spelling of 140123123342355 in words is "one hundred forty trillion, one hundred twenty-three billion, one hundred twenty-three million, three hundred forty-two thousand, three hundred fifty-five".