1401423123 has 4 divisors (see below), whose sum is σ = 1868564168. Its totient is φ = 934282080.

The previous prime is 1401423043. The next prime is 1401423139. The reversal of 1401423123 is 3213241041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3213241041 = 3 ⋅1071080347.

It is not a de Polignac number, because 1401423123 - 2¹² = 1401419027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1401423123.

It is not an unprimeable number, because it can be changed into a prime (1401423193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233570518 + ... + 233570523.

It is an arithmetic number, because the mean of its divisors is an integer number (467141042).

Almost surely, 2^1401423123 is an apocalyptic number.

1401423123 is a deficient number, since it is larger than the sum of its proper divisors (467141045).

1401423123 is an equidigital number, since it uses as much as digits as its factorization.

1401423123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467141044.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1401423123 is about 37435.5863183682. The cubic root of 1401423123 is about 1119.0678689446.

Adding to 1401423123 its reverse (3213241041), we get a palindrome (4614664164).

The spelling of 1401423123 in words is "one billion, four hundred one million, four hundred twenty-three thousand, one hundred twenty-three".