210001101231 has 16 divisors (see below), whose sum is σ = 280589194080. Its totient is φ = 139707002880.

The previous prime is 210001101209. The next prime is 210001101293. The reversal of 210001101231 is 132101100012.

It is not a de Polignac number, because 210001101231 - 2⁷ = 210001101103 is a prime.

It is a super-2 number, since 2×210001101231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210401101231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7570435 + ... + 7598123.

It is an arithmetic number, because the mean of its divisors is an integer number (17536824630).

Almost surely, 2^210001101231 is an apocalyptic number.

210001101231 is a deficient number, since it is larger than the sum of its proper divisors (70588092849).

210001101231 is a wasteful number, since it uses less digits than its factorization.

210001101231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32906.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 210001101231 its reverse (132101100012), we get a palindrome (342102201243).

The spelling of 210001101231 in words is "two hundred ten billion, one million, one hundred one thousand, two hundred thirty-one".