1016423123 has 4 divisors (see below), whose sum is σ = 1020785688. Its totient is φ = 1012060560.

The previous prime is 1016423099. The next prime is 1016423131. The reversal of 1016423123 is 3213246101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3213246101 = 13 ⋅247172777.

It is a cyclic number.

It is not a de Polignac number, because 1016423123 - 2¹⁴ = 1016406739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1016423173) 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, 2180933 + ... + 2181398.

It is an arithmetic number, because the mean of its divisors is an integer number (255196422).

Almost surely, 2^1016423123 is an apocalyptic number.

1016423123 is a deficient number, since it is larger than the sum of its proper divisors (4362565).

1016423123 is an equidigital number, since it uses as much as digits as its factorization.

1016423123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4362564.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1016423123 is about 31881.3914846890. The cubic root of 1016423123 is about 1005.4446760347. Note that the first 3 decimals are identical.

Adding to 1016423123 its reverse (3213246101), we get a palindrome (4229669224).

The spelling of 1016423123 in words is "one billion, sixteen million, four hundred twenty-three thousand, one hundred twenty-three".