101020004191 has 2 divisors, whose sum is σ = 101020004192. Its totient is φ = 101020004190.

The previous prime is 101020004167. The next prime is 101020004207. The reversal of 101020004191 is 191400020101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101020004191 - 2¹⁹ = 101019479903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101020004131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50510002095 + 50510002096.

It is an arithmetic number, because the mean of its divisors is an integer number (50510002096).

Almost surely, 2^101020004191 is an apocalyptic number.

101020004191 is a deficient number, since it is larger than the sum of its proper divisors (1).

101020004191 is an equidigital number, since it uses as much as digits as its factorization.

101020004191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 101020004191 its reverse (191400020101), we get a palindrome (292420024292).

The spelling of 101020004191 in words is "one hundred one billion, twenty million, four thousand, one hundred ninety-one".