1213230423 has 8 divisors (see below), whose sum is σ = 1655260288. Its totient is φ = 790010424.

The previous prime is 1213230419. The next prime is 1213230433. The reversal of 1213230423 is 3240323121.

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

It is not a de Polignac number, because 1213230423 - 2² = 1213230419 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 1213230423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213230433) 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, 4702315 + ... + 4702572.

It is an arithmetic number, because the mean of its divisors is an integer number (206907536).

Almost surely, 2^1213230423 is an apocalyptic number.

1213230423 is a deficient number, since it is larger than the sum of its proper divisors (442029865).

1213230423 is an equidigital number, since it uses as much as digits as its factorization.

1213230423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9404933.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1213230423 is about 34831.4573769172. The cubic root of 1213230423 is about 1066.5496987735.

Adding to 1213230423 its reverse (3240323121), we get a palindrome (4453553544).

The spelling of 1213230423 in words is "one billion, two hundred thirteen million, two hundred thirty thousand, four hundred twenty-three".