142354555640123 has 2 divisors, whose sum is σ = 142354555640124. Its totient is φ = 142354555640122.

The previous prime is 142354555640107. The next prime is 142354555640153. The reversal of 142354555640123 is 321046555453241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142354555640123 - 2⁴ = 142354555640107 is a prime.

It is a super-2 number, since 2×142354555640123² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (142354555640153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71177277820061 + 71177277820062.

It is an arithmetic number, because the mean of its divisors is an integer number (71177277820062).

Almost surely, 2^{142354555640123} is an apocalyptic number.

142354555640123 is a deficient number, since it is larger than the sum of its proper divisors (1).

142354555640123 is an equidigital number, since it uses as much as digits as its factorization.

142354555640123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640000, while the sum is 50.

The spelling of 142354555640123 in words is "one hundred forty-two trillion, three hundred fifty-four billion, five hundred fifty-five million, six hundred forty thousand, one hundred twenty-three".