123031121030219 has 4 divisors (see below), whose sum is σ = 123046811781720. Its totient is φ = 123015430278720.

The previous prime is 123031121030179. The next prime is 123031121030231. The reversal of 123031121030219 is 912030121130321.

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 123031121030219 - 2¹² = 123031121026123 is a prime.

It is a super-2 number, since 2×123031121030219² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123031121030191 and 123031121030200.

It is not an unprimeable number, because it can be changed into a prime (123031121000219) 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, 7845363989 + ... + 7845379670.

It is an arithmetic number, because the mean of its divisors is an integer number (30761702945430).

Almost surely, 2^{123031121030219} is an apocalyptic number.

123031121030219 is a deficient number, since it is larger than the sum of its proper divisors (15690751501).

123031121030219 is an equidigital number, since it uses as much as digits as its factorization.

123031121030219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15690751500.

The product of its (nonzero) digits is 1944, while the sum is 29.

It can be divided in two parts, 12303112 and 1030219, that added together give a palindrome (13333331).

The spelling of 123031121030219 in words is "one hundred twenty-three trillion, thirty-one billion, one hundred twenty-one million, thirty thousand, two hundred nineteen".