101121123201123 has 4 divisors (see below), whose sum is σ = 134828164268168. Its totient is φ = 67414082134080.

The previous prime is 101121123201089. The next prime is 101121123201167. The reversal of 101121123201123 is 321102321121101.

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

It is not a de Polignac number, because 101121123201123 - 2⁹ = 101121123200611 is a prime.

It is a super-2 number, since 2×101121123201123² (a number of 29 digits) contains 22 as substring.

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 101121123201123.

It is not an unprimeable number, because it can be changed into a prime (101121123201523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16853520533518 + ... + 16853520533523.

It is an arithmetic number, because the mean of its divisors is an integer number (33707041067042).

Almost surely, 2^{101121123201123} is an apocalyptic number.

101121123201123 is a deficient number, since it is larger than the sum of its proper divisors (33707041067045).

101121123201123 is an equidigital number, since it uses as much as digits as its factorization.

101121123201123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33707041067044.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 101121123201123 its reverse (321102321121101), we get a palindrome (422223444322224).

The spelling of 101121123201123 in words is "one hundred one trillion, one hundred twenty-one billion, one hundred twenty-three million, two hundred one thousand, one hundred twenty-three".