20131112001003 has 4 divisors (see below), whose sum is σ = 26841482668008. Its totient is φ = 13420741334000.

The previous prime is 20131112000969. The next prime is 20131112001023. The reversal of 20131112001003 is 30010021113102.

It is a happy number.

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 20131112001003 - 2²¹ = 20131109903851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20131112001023) 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, 3355185333498 + ... + 3355185333503.

It is an arithmetic number, because the mean of its divisors is an integer number (6710370667002).

Almost surely, 2^{20131112001003} is an apocalyptic number.

20131112001003 is a deficient number, since it is larger than the sum of its proper divisors (6710370667005).

20131112001003 is an equidigital number, since it uses as much as digits as its factorization.

20131112001003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6710370667004.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 20131112001003 its reverse (30010021113102), we get a palindrome (50141133114105).

The spelling of 20131112001003 in words is "twenty trillion, one hundred thirty-one billion, one hundred twelve million, one thousand, three".