101013231231 has 12 divisors (see below), whose sum is σ = 159172364520. Its totient is φ = 61220140080.

The previous prime is 101013231229. The next prime is 101013231239. The reversal of 101013231231 is 132132310101.

101013231231 is a `hidden beast` number, since 10 + 101 + 323 + 1 + 231 = 666.

It is not a de Polignac number, because 101013231231 - 2¹ = 101013231229 is a prime.

It is a super-2 number, since 2×101013231231² (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 (101013231239) 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 11 ways as a sum of consecutive naturals, for example, 510167736 + ... + 510167933.

It is an arithmetic number, because the mean of its divisors is an integer number (13264363710).

Almost surely, 2^101013231231 is an apocalyptic number.

101013231231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101013231231 is a deficient number, since it is larger than the sum of its proper divisors (58159133289).

101013231231 is a wasteful number, since it uses less digits than its factorization.

101013231231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020335686 (or 1020335683 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 101013231231 its reverse (132132310101), we get a palindrome (233145541332).

The spelling of 101013231231 in words is "one hundred one billion, thirteen million, two hundred thirty-one thousand, two hundred thirty-one".