1302321312123 has 64 divisors (see below), whose sum is σ = 1899381657600. Its totient is φ = 793654068480.

The previous prime is 1302321312121. The next prime is 1302321312139. The reversal of 1302321312123 is 3212131232031.

It is not a de Polignac number, because 1302321312123 - 2¹ = 1302321312121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1302321312093 and 1302321312102.

It is not an unprimeable number, because it can be changed into a prime (1302321312121) 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, 432519688 + ... + 432522698.

It is an arithmetic number, because the mean of its divisors is an integer number (29677838400).

Almost surely, 2^{1302321312123} is an apocalyptic number.

1302321312123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1302321312123 is a deficient number, since it is larger than the sum of its proper divisors (597060345477).

1302321312123 is a wasteful number, since it uses less digits than its factorization.

1302321312123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3669 (or 3643 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1302321312123 its reverse (3212131232031), we get a palindrome (4514452544154).

The spelling of 1302321312123 in words is "one trillion, three hundred two billion, three hundred twenty-one million, three hundred twelve thousand, one hundred twenty-three".