1303212123 has 12 divisors (see below), whose sum is σ = 1882746840. Its totient is φ = 868656096.

The previous prime is 1303212103. The next prime is 1303212167. The reversal of 1303212123 is 3212123031.

1303212123 is a `hidden beast` number, since 130 + 321 + 212 + 3 = 666.

It is not a de Polignac number, because 1303212123 - 2⁵ = 1303212091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1303212096 and 1303212105.

It is not an unprimeable number, because it can be changed into a prime (1303212103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70108 + ... + 86726.

It is an arithmetic number, because the mean of its divisors is an integer number (156895570).

Almost surely, 2^1303212123 is an apocalyptic number.

1303212123 is a deficient number, since it is larger than the sum of its proper divisors (579534717).

1303212123 is a wasteful number, since it uses less digits than its factorization.

1303212123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25338 (or 25335 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1303212123 is about 36100.0294044202. The cubic root of 1303212123 is about 1092.2910381327.

Adding to 1303212123 its reverse (3212123031), we get a palindrome (4515335154).

The spelling of 1303212123 in words is "one billion, three hundred three million, two hundred twelve thousand, one hundred twenty-three".