100231111133 has 2 divisors, whose sum is σ = 100231111134. Its totient is φ = 100231111132.

The previous prime is 100231111081. The next prime is 100231111147. The reversal of 100231111133 is 331111132001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73063171204 + 27167939929 = 270302^2 + 164827^2 .

It is a cyclic number.

It is not a de Polignac number, because 100231111133 - 2¹⁴ = 100231094749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100231111033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50115555566 + 50115555567.

It is an arithmetic number, because the mean of its divisors is an integer number (50115555567).

Almost surely, 2^100231111133 is an apocalyptic number.

It is an amenable number.

100231111133 is a deficient number, since it is larger than the sum of its proper divisors (1).

100231111133 is an equidigital number, since it uses as much as digits as its factorization.

100231111133 is an evil number, because the sum of its binary digits is even.

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

Adding to 100231111133 its reverse (331111132001), we get a palindrome (431342243134).

The spelling of 100231111133 in words is "one hundred billion, two hundred thirty-one million, one hundred eleven thousand, one hundred thirty-three".