121230023311123 has 4 divisors (see below), whose sum is σ = 123809385509280. Its totient is φ = 118650661112968.

The previous prime is 121230023311079. The next prime is 121230023311141. The reversal of 121230023311123 is 321113320032121.

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 121230023311123 - 2³⁷ = 121092584357651 is a prime.

It is a super-2 number, since 2×121230023311123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121230023315123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1289681099008 + ... + 1289681099101.

It is an arithmetic number, because the mean of its divisors is an integer number (30952346377320).

Almost surely, 2^{121230023311123} is an apocalyptic number.

121230023311123 is a deficient number, since it is larger than the sum of its proper divisors (2579362198157).

121230023311123 is an equidigital number, since it uses as much as digits as its factorization.

121230023311123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579362198156.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 121230023311123 its reverse (321113320032121), we get a palindrome (442343343343244).

The spelling of 121230023311123 in words is "one hundred twenty-one trillion, two hundred thirty billion, twenty-three million, three hundred eleven thousand, one hundred twenty-three".