101231202111 has 16 divisors (see below), whose sum is σ = 145371359616. Its totient is φ = 62290237536.

The previous prime is 101231202073. The next prime is 101231202131. The reversal of 101231202111 is 111202132101.

It is a de Polignac number, because none of the positive numbers 2^k-101231202111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101231202131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315136 + ... + 549338.

It is an arithmetic number, because the mean of its divisors is an integer number (9085709976).

Almost surely, 2^101231202111 is an apocalyptic number.

101231202111 is a deficient number, since it is larger than the sum of its proper divisors (44140157505).

101231202111 is a wasteful number, since it uses less digits than its factorization.

101231202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245302.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 101231202111 its reverse (111202132101), we get a palindrome (212433334212).

The spelling of 101231202111 in words is "one hundred one billion, two hundred thirty-one million, two hundred two thousand, one hundred eleven".