1303123212123 has 16 divisors (see below), whose sum is σ = 1829157993600. Its totient is φ = 822929276160.

The previous prime is 1303123212109. The next prime is 1303123212173. The reversal of 1303123212123 is 3212123213031.

It is not a de Polignac number, because 1303123212123 - 2⁶ = 1303123212059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1303123212093 and 1303123212102.

It is not an unprimeable number, because it can be changed into a prime (1303123212173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 837073 + ... + 1818498.

It is an arithmetic number, because the mean of its divisors is an integer number (114322374600).

Almost surely, 2^{1303123212123} is an apocalyptic number.

1303123212123 is a deficient number, since it is larger than the sum of its proper divisors (526034781477).

1303123212123 is a wasteful number, since it uses less digits than its factorization.

1303123212123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664202.

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

Adding to 1303123212123 its reverse (3212123213031), we get a palindrome (4515246425154).

The spelling of 1303123212123 in words is "one trillion, three hundred three billion, one hundred twenty-three million, two hundred twelve thousand, one hundred twenty-three".