1313150123 has 4 divisors (see below), whose sum is σ = 1313529768. Its totient is φ = 1312770480.

The previous prime is 1313150119. The next prime is 1313150161. The reversal of 1313150123 is 3210513131.

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 1313150123 - 2² = 1313150119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313150095 and 1313150104.

It is not an unprimeable number, because it can be changed into a prime (1313150323) 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, 184586 + ... + 191567.

It is an arithmetic number, because the mean of its divisors is an integer number (328382442).

Almost surely, 2^1313150123 is an apocalyptic number.

1313150123 is a deficient number, since it is larger than the sum of its proper divisors (379645).

1313150123 is an equidigital number, since it uses as much as digits as its factorization.

1313150123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379644.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 1313150123 is about 36237.4133044841. The cubic root of 1313150123 is about 1095.0605313938.

Adding to 1313150123 its reverse (3210513131), we get a palindrome (4523663254).

The spelling of 1313150123 in words is "one billion, three hundred thirteen million, one hundred fifty thousand, one hundred twenty-three".