1234123423 has 8 divisors (see below), whose sum is σ = 1371929216. Its totient is φ = 1102442400.

The previous prime is 1234123421. The next prime is 1234123433. The reversal of 1234123423 is 3243214321.

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 1234123423 - 2¹ = 1234123421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234123421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1530768 + ... + 1531573.

It is an arithmetic number, because the mean of its divisors is an integer number (171491152).

Almost surely, 2^1234123423 is an apocalyptic number.

1234123423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1234123423 is a deficient number, since it is larger than the sum of its proper divisors (137805793).

1234123423 is a wasteful number, since it uses less digits than its factorization.

1234123423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062385.

The product of its digits is 3456, while the sum is 25.

The square root of 1234123423 is about 35130.0928407541. The cubic root of 1234123423 is about 1072.6372257367.

Adding to 1234123423 its reverse (3243214321), we get a palindrome (4477337744).

It can be divided in two parts, 12341234 and 23, that multiplied together give a palindrome (283848382).

The spelling of 1234123423 in words is "one billion, two hundred thirty-four million, one hundred twenty-three thousand, four hundred twenty-three".