1231050403 has 8 divisors (see below), whose sum is σ = 1358054640. Its totient is φ = 1106561280.

The previous prime is 1231050391. The next prime is 1231050419. The reversal of 1231050403 is 3040501321.

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

It is not a de Polignac number, because 1231050403 - 2⁵ = 1231050371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231050433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627750 + ... + 629707.

It is an arithmetic number, because the mean of its divisors is an integer number (169756830).

Almost surely, 2^1231050403 is an apocalyptic number.

1231050403 is a deficient number, since it is larger than the sum of its proper divisors (127004237).

1231050403 is a wasteful number, since it uses less digits than its factorization.

1231050403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257557.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1231050403 is about 35086.3278642835. The cubic root of 1231050403 is about 1071.7461815890.

Adding to 1231050403 its reverse (3040501321), we get a palindrome (4271551724).

The spelling of 1231050403 in words is "one billion, two hundred thirty-one million, fifty thousand, four hundred three".