210020030011031 has 4 divisors (see below), whose sum is σ = 210020675640600. Its totient is φ = 210019384381464.

The previous prime is 210020030011013. The next prime is 210020030011039. The reversal of 210020030011031 is 130110030020012.

210020030011031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 210020030011031 - 2¹⁸ = 210020029748887 is a prime.

It is a super-2 number, since 2×210020030011031² (a number of 29 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 = 210020030010997 and 210020030011015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210020030011039) 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, 322326596 + ... + 322977513.

It is an arithmetic number, because the mean of its divisors is an integer number (52505168910150).

Almost surely, 2^{210020030011031} is an apocalyptic number.

210020030011031 is a deficient number, since it is larger than the sum of its proper divisors (645629569).

210020030011031 is an equidigital number, since it uses as much as digits as its factorization.

210020030011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645629568.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 210020030011031 its reverse (130110030020012), we get a palindrome (340130060031043).

The spelling of 210020030011031 in words is "two hundred ten trillion, twenty billion, thirty million, eleven thousand, thirty-one".