2131204312403 has 8 divisors (see below), whose sum is σ = 2238790644000. Its totient is φ = 2024861753728.

The previous prime is 2131204312261. The next prime is 2131204312411. The reversal of 2131204312403 is 3042134021312.

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

It is a cyclic number.

It is not a de Polignac number, because 2131204312403 - 2¹² = 2131204308307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131204312483) 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, 310939718 + ... + 310946571.

It is an arithmetic number, because the mean of its divisors is an integer number (279848830500).

Almost surely, 2^{2131204312403} is an apocalyptic number.

2131204312403 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2131204312403 is a deficient number, since it is larger than the sum of its proper divisors (107586331597).

2131204312403 is a wasteful number, since it uses less digits than its factorization.

2131204312403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621886461.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 2131204312403 its reverse (3042134021312), we get a palindrome (5173338333715).

The spelling of 2131204312403 in words is "two trillion, one hundred thirty-one billion, two hundred four million, three hundred twelve thousand, four hundred three".