1218034423 has 8 divisors (see below), whose sum is σ = 1300682880. Its totient is φ = 1138095840.

The previous prime is 1218034399. The next prime is 1218034427. The reversal of 1218034423 is 3244308121.

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 1218034423 - 2²¹ = 1215937271 is a prime.

It is a super-2 number, since 2×1218034423² = 2967215711225885858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1218034391 and 1218034400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218034427) 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, 676540 + ... + 678337.

It is an arithmetic number, because the mean of its divisors is an integer number (162585360).

Almost surely, 2^1218034423 is an apocalyptic number.

1218034423 is a deficient number, since it is larger than the sum of its proper divisors (82648457).

1218034423 is a wasteful number, since it uses less digits than its factorization.

1218034423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354937.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1218034423 is about 34900.3498979595. The cubic root of 1218034423 is about 1067.9555753917.

The spelling of 1218034423 in words is "one billion, two hundred eighteen million, thirty-four thousand, four hundred twenty-three".