4121231403 has 4 divisors (see below), whose sum is σ = 5494975208. Its totient is φ = 2747487600.

The previous prime is 4121231353. The next prime is 4121231503. The reversal of 4121231403 is 3041321214.

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

It is not a de Polignac number, because 4121231403 - 2¹² = 4121227307 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 4121231403.

It is not an unprimeable number, because it can be changed into a prime (4121231203) 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, 686871898 + ... + 686871903.

It is an arithmetic number, because the mean of its divisors is an integer number (1373743802).

Almost surely, 2^4121231403 is an apocalyptic number.

4121231403 is a deficient number, since it is larger than the sum of its proper divisors (1373743805).

4121231403 is a wasteful number, since it uses less digits than its factorization.

4121231403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373743804.

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

The square root of 4121231403 is about 64196.8177015029. The cubic root of 4121231403 is about 1603.2786160165.

Adding to 4121231403 its reverse (3041321214), we get a palindrome (7162552617).

The spelling of 4121231403 in words is "four billion, one hundred twenty-one million, two hundred thirty-one thousand, four hundred three".