20130231233403 has 12 divisors (see below), whose sum is σ = 29077044013368. Its totient is φ = 13420134151200.

The previous prime is 20130231233393. The next prime is 20130231233417. The reversal of 20130231233403 is 30433213203102.

20130231233403 is a `hidden beast` number, since 2 + 0 + 1 + 3 + 0 + 2 + 312 + 3 + 340 + 3 = 666.

It is not a de Polignac number, because 20130231233403 - 2⁶ = 20130231233339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20130231233473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7173828 + ... + 9577278.

It is an arithmetic number, because the mean of its divisors is an integer number (2423087001114).

Almost surely, 2^{20130231233403} is an apocalyptic number.

20130231233403 is a deficient number, since it is larger than the sum of its proper divisors (8946812779965).

20130231233403 is a wasteful number, since it uses less digits than its factorization.

20130231233403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334074 (or 3334071 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 20130231233403 its reverse (30433213203102), we get a palindrome (50563444436505).

The spelling of 20130231233403 in words is "twenty trillion, one hundred thirty billion, two hundred thirty-one million, two hundred thirty-three thousand, four hundred three".