20013103332031 has 4 divisors (see below), whose sum is σ = 20026616570064. Its totient is φ = 19999590094000.

The previous prime is 20013103332023. The next prime is 20013103332037. The reversal of 20013103332031 is 13023330131002.

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 20013103332031 - 2³ = 20013103332023 is a prime.

It is a super-2 number, since 2×20013103332031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20013103331993 and 20013103332011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013103332037) 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, 6756616795 + ... + 6756619756.

It is an arithmetic number, because the mean of its divisors is an integer number (5006654142516).

Almost surely, 2^{20013103332031} is an apocalyptic number.

20013103332031 is a deficient number, since it is larger than the sum of its proper divisors (13513238033).

20013103332031 is a wasteful number, since it uses less digits than its factorization.

20013103332031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13513238032.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 20013103332031 its reverse (13023330131002), we get a palindrome (33036433463033).

The spelling of 20013103332031 in words is "twenty trillion, thirteen billion, one hundred three million, three hundred thirty-two thousand, thirty-one".