20213110103031 has 24 divisors (see below), whose sum is σ = 29633262996480. Its totient is φ = 13273933399056.

The previous prime is 20213110103027. The next prime is 20213110103057. The reversal of 20213110103031 is 13030101131202.

20213110103031 is a `hidden beast` number, since 20 + 21 + 311 + 0 + 10 + 303 + 1 = 666.

It is not a de Polignac number, because 20213110103031 - 2² = 20213110103027 is a prime.

It is a super-2 number, since 2×20213110103031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20213110102995 and 20213110103013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213110103731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23688106 + ... + 24526568.

It is an arithmetic number, because the mean of its divisors is an integer number (1234719291520).

Almost surely, 2^{20213110103031} is an apocalyptic number.

20213110103031 is a deficient number, since it is larger than the sum of its proper divisors (9420152893449).

20213110103031 is a wasteful number, since it uses less digits than its factorization.

20213110103031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878515 (or 878512 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 20213110103031 its reverse (13030101131202), we get a palindrome (33243211234233).

The spelling of 20213110103031 in words is "twenty trillion, two hundred thirteen billion, one hundred ten million, one hundred three thousand, thirty-one".