20131203323 has 16 divisors (see below), whose sum is σ = 26419626240. Its totient is φ = 14861037600.

The previous prime is 20131203283. The next prime is 20131203331. The reversal of 20131203323 is 32330213102.

It is a cyclic number.

It is not a de Polignac number, because 20131203323 - 2⁸ = 20131203067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20131203295 and 20131203304.

It is not an unprimeable number, because it can be changed into a prime (20131203343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6878648 + ... + 6881573.

It is an arithmetic number, because the mean of its divisors is an integer number (1651226640).

Almost surely, 2^20131203323 is an apocalyptic number.

20131203323 is a deficient number, since it is larger than the sum of its proper divisors (6288422917).

20131203323 is a wasteful number, since it uses less digits than its factorization.

20131203323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13760258.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20131203323 its reverse (32330213102), we get a palindrome (52461416425).

The spelling of 20131203323 in words is "twenty billion, one hundred thirty-one million, two hundred three thousand, three hundred twenty-three".