12002102813531 has 2 divisors, whose sum is σ = 12002102813532. Its totient is φ = 12002102813530.

The previous prime is 12002102813509. The next prime is 12002102813567. The reversal of 12002102813531 is 13531820120021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12002102813531 - 2²⁶ = 12002035704667 is a prime.

It is a super-2 number, since 2×12002102813531² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 12002102813494 and 12002102813503.

It is not a weakly prime, because it can be changed into another prime (12002102873531) 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 as a sum of consecutive naturals, namely, 6001051406765 + 6001051406766.

It is an arithmetic number, because the mean of its divisors is an integer number (6001051406766).

Almost surely, 2^{12002102813531} is an apocalyptic number.

12002102813531 is a deficient number, since it is larger than the sum of its proper divisors (1).

12002102813531 is an equidigital number, since it uses as much as digits as its factorization.

12002102813531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 12002102813531 its reverse (13531820120021), we get a palindrome (25533922933552).

The spelling of 12002102813531 in words is "twelve trillion, two billion, one hundred two million, eight hundred thirteen thousand, five hundred thirty-one".