101111009479531 has 2 divisors, whose sum is σ = 101111009479532. Its totient is φ = 101111009479530.

The previous prime is 101111009479477. The next prime is 101111009479537. The reversal of 101111009479531 is 135974900111101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101111009479531 - 2⁹ = 101111009479019 is a prime.

It is a super-2 number, since 2×101111009479531² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101111009479537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50555504739765 + 50555504739766.

It is an arithmetic number, because the mean of its divisors is an integer number (50555504739766).

Almost surely, 2^{101111009479531} is an apocalyptic number.

101111009479531 is a deficient number, since it is larger than the sum of its proper divisors (1).

101111009479531 is an equidigital number, since it uses as much as digits as its factorization.

101111009479531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 43.

The spelling of 101111009479531 in words is "one hundred one trillion, one hundred eleven billion, nine million, four hundred seventy-nine thousand, five hundred thirty-one".