2043442420123 has 12 divisors (see below), whose sum is σ = 2215410429360. Its totient is φ = 1883962488096.

The previous prime is 2043442420067. The next prime is 2043442420139. The reversal of 2043442420123 is 3210242443402.

It is a de Polignac number, because none of the positive numbers 2^k-2043442420123 is a prime.

It is a super-4 number, since 4×2043442420123⁴ (a number of 50 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2043442420153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7206828 + ... + 7485001.

It is an arithmetic number, because the mean of its divisors is an integer number (184617535780).

Almost surely, 2^{2043442420123} is an apocalyptic number.

2043442420123 is a deficient number, since it is larger than the sum of its proper divisors (171968009237).

2043442420123 is a wasteful number, since it uses less digits than its factorization.

2043442420123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14692678 (or 14692665 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 2043442420123 its reverse (3210242443402), we get a palindrome (5253684863525).

The spelling of 2043442420123 in words is "two trillion, forty-three billion, four hundred forty-two million, four hundred twenty thousand, one hundred twenty-three".