1214123403 has 4 divisors (see below), whose sum is σ = 1618831208. Its totient is φ = 809415600.

The previous prime is 1214123381. The next prime is 1214123413. The reversal of 1214123403 is 3043214121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3043214121 = 3 ⋅1014404707.

It is not a de Polignac number, because 1214123403 - 2⁹ = 1214122891 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 1214123403.

It is not an unprimeable number, because it can be changed into a prime (1214123413) 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, 202353898 + ... + 202353903.

It is an arithmetic number, because the mean of its divisors is an integer number (404707802).

Almost surely, 2^1214123403 is an apocalyptic number.

1214123403 is a deficient number, since it is larger than the sum of its proper divisors (404707805).

1214123403 is an equidigital number, since it uses as much as digits as its factorization.

1214123403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404707804.

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

The square root of 1214123403 is about 34844.2736041376. The cubic root of 1214123403 is about 1066.8113072195.

Adding to 1214123403 its reverse (3043214121), we get a palindrome (4257337524).

The spelling of 1214123403 in words is "one billion, two hundred fourteen million, one hundred twenty-three thousand, four hundred three".