1311033130123 has 12 divisors (see below), whose sum is σ = 1358402943240. Its totient is φ = 1265115598656.

The previous prime is 1311033130093. The next prime is 1311033130171. The reversal of 1311033130123 is 3210313301131.

It is not a de Polignac number, because 1311033130123 - 2²⁹ = 1310496259211 is a prime.

It is a super-2 number, since 2×1311033130123² (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 = 1311033130094 and 1311033130103.

It is not an unprimeable number, because it can be changed into a prime (1311033130723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4117918 + ... + 4424851.

It is an arithmetic number, because the mean of its divisors is an integer number (113200245270).

Almost surely, 2^{1311033130123} is an apocalyptic number.

1311033130123 is a deficient number, since it is larger than the sum of its proper divisors (47369813117).

1311033130123 is an frugal number, since it uses more digits than its factorization.

1311033130123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8542938 (or 8542895 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1311033130123 its reverse (3210313301131), we get a palindrome (4521346431254).

The spelling of 1311033130123 in words is "one trillion, three hundred eleven billion, thirty-three million, one hundred thirty thousand, one hundred twenty-three".