101231011 has 12 divisors (see below), whose sum is σ = 118367568. Its totient is φ = 86320752.

The previous prime is 101230999. The next prime is 101231021. The reversal of 101231011 is 110132101.

It is a de Polignac number, because none of the positive numbers 2^k-101231011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101231021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4410 + ... + 14896.

It is an arithmetic number, because the mean of its divisors is an integer number (9863964).

Almost surely, 2^101231011 is an apocalyptic number.

101231011 is a deficient number, since it is larger than the sum of its proper divisors (17136557).

101231011 is a wasteful number, since it uses less digits than its factorization.

101231011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10698 (or 10691 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 101231011 is about 10061.3622835081. The cubic root of 101231011 is about 466.0557366698.

Adding to 101231011 its reverse (110132101), we get a palindrome (211363112).

It can be divided in two parts, 1012 and 31011, that added together give a palindrome (32023).

The spelling of 101231011 in words is "one hundred one million, two hundred thirty-one thousand, eleven".