123331311203 has 4 divisors (see below), whose sum is σ = 123337928328. Its totient is φ = 123324694080.

The previous prime is 123331311199. The next prime is 123331311223. The reversal of 123331311203 is 302113133321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302113133321 = 463 ⋅652512167.

It is a cyclic number.

It is not a de Polignac number, because 123331311203 - 2² = 123331311199 is a prime.

It is a super-2 number, since 2×123331311203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123331311223) 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, 3280526 + ... + 3317907.

It is an arithmetic number, because the mean of its divisors is an integer number (30834482082).

Almost surely, 2^123331311203 is an apocalyptic number.

123331311203 is a deficient number, since it is larger than the sum of its proper divisors (6617125).

123331311203 is an equidigital number, since it uses as much as digits as its factorization.

123331311203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6617124.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 123331311203 its reverse (302113133321), we get a palindrome (425444444524).

The spelling of 123331311203 in words is "one hundred twenty-three billion, three hundred thirty-one million, three hundred eleven thousand, two hundred three".