42123403303 has 4 divisors (see below), whose sum is σ = 42125962480. Its totient is φ = 42120844128.

The previous prime is 42123403249. The next prime is 42123403349. The reversal of 42123403303 is 30330432124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42123403303 is a prime.

It is a super-2 number, since 2×42123403303² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42123403393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254738 + ... + 1287871.

It is an arithmetic number, because the mean of its divisors is an integer number (10531490620).

Almost surely, 2^42123403303 is an apocalyptic number.

42123403303 is a deficient number, since it is larger than the sum of its proper divisors (2559177).

42123403303 is a wasteful number, since it uses less digits than its factorization.

42123403303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559176.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 42123403303 its reverse (30330432124), we get a palindrome (72453835427).

The spelling of 42123403303 in words is "forty-two billion, one hundred twenty-three million, four hundred three thousand, three hundred three".