1203122221123 has 8 divisors (see below), whose sum is σ = 1210702750416. Its totient is φ = 1195544124000.

The previous prime is 1203122221109. The next prime is 1203122221199. The reversal of 1203122221123 is 3211222213021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1203122221123 is a prime.

It is a super-2 number, since 2×1203122221123² (a number of 25 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 = 1203122221094 and 1203122221103.

It is not an unprimeable number, because it can be changed into a prime (1203122221523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389553 + ... + 1599373.

It is an arithmetic number, because the mean of its divisors is an integer number (151337843802).

Almost surely, 2^{1203122221123} is an apocalyptic number.

1203122221123 is a deficient number, since it is larger than the sum of its proper divisors (7580529293).

1203122221123 is a wasteful number, since it uses less digits than its factorization.

1203122221123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216085.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1203122221123 its reverse (3211222213021), we get a palindrome (4414344434144).

The spelling of 1203122221123 in words is "one trillion, two hundred three billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty-three".