101012001091 has 2 divisors, whose sum is σ = 101012001092. Its totient is φ = 101012001090.

The previous prime is 101012001067. The next prime is 101012001113. The reversal of 101012001091 is 190100210101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101012001091 - 2²⁹ = 100475130179 is a prime.

It is not a weakly prime, because it can be changed into another prime (101012004091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50506000545 + 50506000546.

It is an arithmetic number, because the mean of its divisors is an integer number (50506000546).

Almost surely, 2^101012001091 is an apocalyptic number.

101012001091 is a deficient number, since it is larger than the sum of its proper divisors (1).

101012001091 is an equidigital number, since it uses as much as digits as its factorization.

101012001091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 101012001091 its reverse (190100210101), we get a palindrome (291112211192).

The spelling of 101012001091 in words is "one hundred one billion, twelve million, one thousand, ninety-one".