12315402123011 has 4 divisors (see below), whose sum is σ = 13262740747872. Its totient is φ = 11368063498152.

The previous prime is 12315402122987. The next prime is 12315402123049. The reversal of 12315402123011 is 11032120451321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12315402123011 - 2¹⁰ = 12315402121987 is a prime.

It is a super-2 number, since 2×12315402123011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12315402126011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473669312411 + ... + 473669312436.

It is an arithmetic number, because the mean of its divisors is an integer number (3315685186968).

Almost surely, 2^{12315402123011} is an apocalyptic number.

12315402123011 is a deficient number, since it is larger than the sum of its proper divisors (947338624861).

12315402123011 is an equidigital number, since it uses as much as digits as its factorization.

12315402123011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947338624860.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 12315402123011 its reverse (11032120451321), we get a palindrome (23347522574332).

The spelling of 12315402123011 in words is "twelve trillion, three hundred fifteen billion, four hundred two million, one hundred twenty-three thousand, eleven".