42203123515450 has 96 divisors (see below), whose sum is σ = 79558093313280. Its totient is φ = 16654128691200.

The previous prime is 42203123515439. The next prime is 42203123515453. The reversal of 42203123515450 is 5451532130224.

It is a happy number.

It is a super-2 number, since 2×42203123515450² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42203123515453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3839085154 + ... + 3839096146.

It is an arithmetic number, because the mean of its divisors is an integer number (828730138680).

Almost surely, 2^{42203123515450} is an apocalyptic number.

42203123515450 is a deficient number, since it is larger than the sum of its proper divisors (37354969797830).

42203123515450 is a wasteful number, since it uses less digits than its factorization.

42203123515450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12952 (or 12947 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 42203123515450 its reverse (5451532130224), we get a palindrome (47654655645674).

The spelling of 42203123515450 in words is "forty-two trillion, two hundred three billion, one hundred twenty-three million, five hundred fifteen thousand, four hundred fifty".