1421115005123 has 8 divisors (see below), whose sum is σ = 1551725687856. Its totient is φ = 1290740724000.

The previous prime is 1421115005113. The next prime is 1421115005129. The reversal of 1421115005123 is 3215005111241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1421115005123 - 2⁸ = 1421115004867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1421115005092 and 1421115005101.

It is not an unprimeable number, because it can be changed into a prime (1421115005129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59087828 + ... + 59111873.

It is an arithmetic number, because the mean of its divisors is an integer number (193965710982).

Almost surely, 2^{1421115005123} is an apocalyptic number.

1421115005123 is a deficient number, since it is larger than the sum of its proper divisors (130610682733).

1421115005123 is a wasteful number, since it uses less digits than its factorization.

1421115005123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118200805.

The product of its (nonzero) digits is 1200, while the sum is 26.

The spelling of 1421115005123 in words is "one trillion, four hundred twenty-one billion, one hundred fifteen million, five thousand, one hundred twenty-three".