101001121099943 has 2 divisors, whose sum is σ = 101001121099944. Its totient is φ = 101001121099942.

The previous prime is 101001121099909. The next prime is 101001121099951. The reversal of 101001121099943 is 349990121100101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101001121099943 - 2²⁰ = 101001120051367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101001121099943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101001121099343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500560549971 + 50500560549972.

It is an arithmetic number, because the mean of its divisors is an integer number (50500560549972).

Almost surely, 2^{101001121099943} is an apocalyptic number.

101001121099943 is a deficient number, since it is larger than the sum of its proper divisors (1).

101001121099943 is an equidigital number, since it uses as much as digits as its factorization.

101001121099943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 41.

The spelling of 101001121099943 in words is "one hundred one trillion, one billion, one hundred twenty-one million, ninety-nine thousand, nine hundred forty-three".