4021403311123 has 4 divisors (see below), whose sum is σ = 4386985430328. Its totient is φ = 3655821191920.

The previous prime is 4021403311111. The next prime is 4021403311171. The reversal of 4021403311123 is 3211133041204.

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

It is a cyclic number.

It is not a de Polignac number, because 4021403311123 - 2⁵ = 4021403311091 is a prime.

It is a super-2 number, since 2×4021403311123² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021403311183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182791059586 + ... + 182791059607.

It is an arithmetic number, because the mean of its divisors is an integer number (1096746357582).

Almost surely, 2^{4021403311123} is an apocalyptic number.

4021403311123 is a deficient number, since it is larger than the sum of its proper divisors (365582119205).

4021403311123 is a wasteful number, since it uses less digits than its factorization.

4021403311123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365582119204.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 4021403311123 its reverse (3211133041204), we get a palindrome (7232536352327).

The spelling of 4021403311123 in words is "four trillion, twenty-one billion, four hundred three million, three hundred eleven thousand, one hundred twenty-three".