1302112123 has 32 divisors (see below), whose sum is σ = 1512000000. Its totient is φ = 1111283712.

The previous prime is 1302112081. The next prime is 1302112129. The reversal of 1302112123 is 3212112031.

It is a cyclic number.

It is not a de Polignac number, because 1302112123 - 2⁹ = 1302111611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1302112097 and 1302112106.

It is not an unprimeable number, because it can be changed into a prime (1302112129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2899803 + ... + 2900251.

It is an arithmetic number, because the mean of its divisors is an integer number (47250000).

Almost surely, 2^1302112123 is an apocalyptic number.

1302112123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1302112123 is a deficient number, since it is larger than the sum of its proper divisors (209887877).

1302112123 is a wasteful number, since it uses less digits than its factorization.

1302112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1302112123 is about 36084.7907434697. The cubic root of 1302112123 is about 1091.9836288900.

Adding to 1302112123 its reverse (3212112031), we get a palindrome (4514224154).

The spelling of 1302112123 in words is "one billion, three hundred two million, one hundred twelve thousand, one hundred twenty-three".