1234213503 has 4 divisors (see below), whose sum is σ = 1645618008. Its totient is φ = 822809000.

The previous prime is 1234213493. The next prime is 1234213517. The reversal of 1234213503 is 3053124321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1234213503 - 2¹⁸ = 1233951359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234213003) 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, 205702248 + ... + 205702253.

It is an arithmetic number, because the mean of its divisors is an integer number (411404502).

Almost surely, 2^1234213503 is an apocalyptic number.

1234213503 is a deficient number, since it is larger than the sum of its proper divisors (411404505).

1234213503 is an equidigital number, since it uses as much as digits as its factorization.

1234213503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411404504.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1234213503 is about 35131.3749090468. The cubic root of 1234213503 is about 1072.6633227512.

Adding to 1234213503 its reverse (3053124321), we get a palindrome (4287337824).

The spelling of 1234213503 in words is "one billion, two hundred thirty-four million, two hundred thirteen thousand, five hundred three".