1311000010123 has 8 divisors (see below), whose sum is σ = 1359975314880. Its totient is φ = 1262834214720.

The previous prime is 1311000010087. The next prime is 1311000010141. The reversal of 1311000010123 is 3210100001131.

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

It is a cyclic number.

It is not a de Polignac number, because 1311000010123 - 2²¹ = 1310997912971 is a prime.

It is a super-2 number, since 2×1311000010123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311000010153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202374040 + ... + 202380517.

It is an arithmetic number, because the mean of its divisors is an integer number (169996914360).

Almost surely, 2^{1311000010123} is an apocalyptic number.

1311000010123 is a deficient number, since it is larger than the sum of its proper divisors (48975304757).

1311000010123 is an equidigital number, since it uses as much as digits as its factorization.

1311000010123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404754677.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 1311000010123 its reverse (3210100001131), we get a palindrome (4521100011254).

The spelling of 1311000010123 in words is "one trillion, three hundred eleven billion, ten thousand, one hundred twenty-three".