210231421011 has 6 divisors (see below), whose sum is σ = 303667608140. Its totient is φ = 140154280668.

The previous prime is 210231421007. The next prime is 210231421013. The reversal of 210231421011 is 110124132012.

210231421011 is a `hidden beast` number, since 2 + 1 + 0 + 231 + 421 + 0 + 11 = 666.

It is not a de Polignac number, because 210231421011 - 2² = 210231421007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210231421013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11679523381 + ... + 11679523398.

Almost surely, 2^210231421011 is an apocalyptic number.

210231421011 is a deficient number, since it is larger than the sum of its proper divisors (93436187129).

210231421011 is a wasteful number, since it uses less digits than its factorization.

210231421011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23359046785 (or 23359046782 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 210231421011 its reverse (110124132012), we get a palindrome (320355553023).

The spelling of 210231421011 in words is "two hundred ten billion, two hundred thirty-one million, four hundred twenty-one thousand, eleven".