20131222231003 has 4 divisors (see below), whose sum is σ = 21679777787248. Its totient is φ = 18582666674760.

The previous prime is 20131222230971. The next prime is 20131222231033. The reversal of 20131222231003 is 30013222213102.

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

It is a cyclic number.

It is not a de Polignac number, because 20131222231003 - 2⁵ = 20131222230971 is a prime.

It is a super-2 number, since 2×20131222231003² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20131222231033) 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, 774277778103 + ... + 774277778128.

It is an arithmetic number, because the mean of its divisors is an integer number (5419944446812).

Almost surely, 2^{20131222231003} is an apocalyptic number.

20131222231003 is a deficient number, since it is larger than the sum of its proper divisors (1548555556245).

20131222231003 is a wasteful number, since it uses less digits than its factorization.

20131222231003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548555556244.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20131222231003 its reverse (30013222213102), we get a palindrome (50144444444105).

The spelling of 20131222231003 in words is "twenty trillion, one hundred thirty-one billion, two hundred twenty-two million, two hundred thirty-one thousand, three".