231010101 has 12 divisors (see below), whose sum is σ = 381350112. Its totient is φ = 132005736.

The previous prime is 231010069. The next prime is 231010103. The reversal of 231010101 is 101010132.

It is not a de Polignac number, because 231010101 - 2⁵ = 231010069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

231010101 is a modest number, since divided by 10101 gives 231 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231010103) 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 11 ways as a sum of consecutive naturals, for example, 1833351 + ... + 1833476.

It is an arithmetic number, because the mean of its divisors is an integer number (31779176).

Almost surely, 2^231010101 is an apocalyptic number.

231010101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

231010101 is a deficient number, since it is larger than the sum of its proper divisors (150340011).

231010101 is a wasteful number, since it uses less digits than its factorization.

231010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3666840 (or 3666837 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 231010101 is about 15199.0164484417. The cubic root of 231010101 is about 613.5881872182.

Adding to 231010101 its reverse (101010132), we get a palindrome (332020233).

The spelling of 231010101 in words is "two hundred thirty-one million, ten thousand, one hundred one".