20113310313031 has 16 divisors (see below), whose sum is σ = 21819332556000. Its totient is φ = 18430134115968.

The previous prime is 20113310313011. The next prime is 20113310313077. The reversal of 20113310313031 is 13031301331102.

It is a cyclic number.

It is not a de Polignac number, because 20113310313031 - 2⁹ = 20113310312519 is a prime.

It is a super-2 number, since 2×20113310313031² (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 = 20113310312993 and 20113310313011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113310313011) 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, 70836 + ... + 6342841.

It is an arithmetic number, because the mean of its divisors is an integer number (1363708284750).

Almost surely, 2^{20113310313031} is an apocalyptic number.

20113310313031 is a deficient number, since it is larger than the sum of its proper divisors (1706022242969).

20113310313031 is a wasteful number, since it uses less digits than its factorization.

20113310313031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6415458.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 20113310313031 its reverse (13031301331102), we get a palindrome (33144611644133).

The spelling of 20113310313031 in words is "twenty trillion, one hundred thirteen billion, three hundred ten million, three hundred thirteen thousand, thirty-one".