1203542442423 has 24 divisors (see below), whose sum is σ = 1775603481600. Its totient is φ = 785217130704.

The previous prime is 1203542442367. The next prime is 1203542442433. The reversal of 1203542442423 is 3242442453021.

1203542442423 is a `hidden beast` number, since 1 + 20 + 354 + 2 + 44 + 242 + 3 = 666.

It is not a de Polignac number, because 1203542442423 - 2³⁷ = 1066103488951 is a prime.

It is a super-2 number, since 2×1203542442423² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203542442433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4627518 + ... + 4880676.

It is an arithmetic number, because the mean of its divisors is an integer number (73983478400).

Almost surely, 2^{1203542442423} is an apocalyptic number.

1203542442423 is a deficient number, since it is larger than the sum of its proper divisors (572061039177).

1203542442423 is a wasteful number, since it uses less digits than its factorization.

1203542442423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264451 (or 264448 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 36.

Adding to 1203542442423 its reverse (3242442453021), we get a palindrome (4445984895444).

The spelling of 1203542442423 in words is "one trillion, two hundred three billion, five hundred forty-two million, four hundred forty-two thousand, four hundred twenty-three".