101015554145243 has 4 divisors (see below), whose sum is σ = 101122223157960. Its totient is φ = 100908885132528.

The previous prime is 101015554145201. The next prime is 101015554145291. The reversal of 101015554145243 is 342541455510101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101015554145243 - 2²⁸ = 101015285709787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101015554145243.

It is not an unprimeable number, because it can be changed into a prime (101015554165243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53334504938 + ... + 53334506831.

It is an arithmetic number, because the mean of its divisors is an integer number (25280555789490).

Almost surely, 2^{101015554145243} is an apocalyptic number.

101015554145243 is a deficient number, since it is larger than the sum of its proper divisors (106669012717).

101015554145243 is an equidigital number, since it uses as much as digits as its factorization.

101015554145243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106669012716.

The product of its (nonzero) digits is 240000, while the sum is 41.

The spelling of 101015554145243 in words is "one hundred one trillion, fifteen billion, five hundred fifty-four million, one hundred forty-five thousand, two hundred forty-three".