101111330431 has 2 divisors, whose sum is σ = 101111330432. Its totient is φ = 101111330430.

The previous prime is 101111330413. The next prime is 101111330459. The reversal of 101111330431 is 134033111101.

It is a happy number.

Together with previous prime (101111330413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101111330431 - 2⁹ = 101111329919 is a prime.

It is a super-2 number, since 2×101111330431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101111330399 and 101111330408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101111330471) 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 as a sum of consecutive naturals, namely, 50555665215 + 50555665216.

It is an arithmetic number, because the mean of its divisors is an integer number (50555665216).

Almost surely, 2^101111330431 is an apocalyptic number.

101111330431 is a deficient number, since it is larger than the sum of its proper divisors (1).

101111330431 is an equidigital number, since it uses as much as digits as its factorization.

101111330431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 101111330431 its reverse (134033111101), we get a palindrome (235144441532).

The spelling of 101111330431 in words is "one hundred one billion, one hundred eleven million, three hundred thirty thousand, four hundred thirty-one".