1301210123 has 4 divisors (see below), whose sum is σ = 1311456000. Its totient is φ = 1290964248.

The previous prime is 1301210111. The next prime is 1301210137. The reversal of 1301210123 is 3210121031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1301210123 - 2⁸ = 1301209867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301210098 and 1301210107.

It is not an unprimeable number, because it can be changed into a prime (1301212123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5122748 + ... + 5123001.

It is an arithmetic number, because the mean of its divisors is an integer number (327864000).

Almost surely, 2^1301210123 is an apocalyptic number.

1301210123 is a deficient number, since it is larger than the sum of its proper divisors (10245877).

1301210123 is a wasteful number, since it uses less digits than its factorization.

1301210123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10245876.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1301210123 is about 36072.2902377989. The cubic root of 1301210123 is about 1091.7314240966.

Adding to 1301210123 its reverse (3210121031), we get a palindrome (4511331154).

The spelling of 1301210123 in words is "one billion, three hundred one million, two hundred ten thousand, one hundred twenty-three".