101231011133 has 4 divisors (see below), whose sum is σ = 115692584160. Its totient is φ = 86769438108.

The previous prime is 101231011127. The next prime is 101231011163. The reversal of 101231011133 is 331110132101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 331110132101 = 7 ⋅47301447443.

It is a cyclic number.

It is not a de Polignac number, because 101231011133 - 2¹⁸ = 101230748989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101231011163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7230786503 + ... + 7230786516.

It is an arithmetic number, because the mean of its divisors is an integer number (28923146040).

Almost surely, 2^101231011133 is an apocalyptic number.

It is an amenable number.

101231011133 is a deficient number, since it is larger than the sum of its proper divisors (14461573027).

101231011133 is an equidigital number, since it uses as much as digits as its factorization.

101231011133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14461573026.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 101231011133 its reverse (331110132101), we get a palindrome (432341143234).

The spelling of 101231011133 in words is "one hundred one billion, two hundred thirty-one million, eleven thousand, one hundred thirty-three".