1203311331123 has 64 divisors (see below), whose sum is σ = 1779854598144. Its totient is φ = 717046704000.

The previous prime is 1203311331121. The next prime is 1203311331179. The reversal of 1203311331123 is 3211331133021.

It is not a de Polignac number, because 1203311331123 - 2¹ = 1203311331121 is a prime.

It is a super-3 number, since 3×1203311331123³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1203311331093 and 1203311331102.

It is not an unprimeable number, because it can be changed into a prime (1203311331121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 664444888 + ... + 664446698.

It is an arithmetic number, because the mean of its divisors is an integer number (27810228096).

Almost surely, 2^{1203311331123} is an apocalyptic number.

1203311331123 is a deficient number, since it is larger than the sum of its proper divisors (576543267021).

1203311331123 is a wasteful number, since it uses less digits than its factorization.

1203311331123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1203311331123 its reverse (3211331133021), we get a palindrome (4414642464144).

The spelling of 1203311331123 in words is "one trillion, two hundred three billion, three hundred eleven million, three hundred thirty-one thousand, one hundred twenty-three".