210130031011 has 4 divisors (see below), whose sum is σ = 210131066592. Its totient is φ = 210128995432.

The previous prime is 210130030967. The next prime is 210130031093. The reversal of 210130031011 is 110130031012.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210130031011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210130030982 and 210130031000.

It is not an unprimeable number, because it can be changed into a prime (210130031311) 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, 102280 + ... + 656293.

It is an arithmetic number, because the mean of its divisors is an integer number (52532766648).

Almost surely, 2^210130031011 is an apocalyptic number.

210130031011 is a deficient number, since it is larger than the sum of its proper divisors (1035581).

210130031011 is an equidigital number, since it uses as much as digits as its factorization.

210130031011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035580.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 210130031011 its reverse (110130031012), we get a palindrome (320260062023).

Subtracting from 210130031011 its reverse (110130031012), we obtain a palindrome (99999999999).

The spelling of 210130031011 in words is "two hundred ten billion, one hundred thirty million, thirty-one thousand, eleven".