1301042123 has 4 divisors (see below), whose sum is σ = 1309658448. Its totient is φ = 1292425800.

The previous prime is 1301042117. The next prime is 1301042153. The reversal of 1301042123 is 3212401031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3212401031 = 7 ⋅458914433.

It is a cyclic number.

It is not a de Polignac number, because 1301042123 - 2⁴ = 1301042107 is a prime.

It is a super-3 number, since 3×1301042123³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301042153) 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, 4307936 + ... + 4308237.

It is an arithmetic number, because the mean of its divisors is an integer number (327414612).

Almost surely, 2^1301042123 is an apocalyptic number.

1301042123 is a deficient number, since it is larger than the sum of its proper divisors (8616325).

1301042123 is an equidigital number, since it uses as much as digits as its factorization.

1301042123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8616324.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1301042123 is about 36069.9615053856. The cubic root of 1301042123 is about 1091.6844373801.

Adding to 1301042123 its reverse (3212401031), we get a palindrome (4513443154).

The spelling of 1301042123 in words is "one billion, three hundred one million, forty-two thousand, one hundred twenty-three".