123012341513 has 16 divisors (see below), whose sum is σ = 132473376000. Its totient is φ = 113811340032.

The previous prime is 123012341471. The next prime is 123012341531. The reversal of 123012341513 is 315143210321.

It is a cyclic number.

It is not a de Polignac number, because 123012341513 - 2¹² = 123012337417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123012341113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107558 + ... + 507536.

It is an arithmetic number, because the mean of its divisors is an integer number (8279586000).

Almost surely, 2^123012341513 is an apocalyptic number.

It is an amenable number.

123012341513 is a deficient number, since it is larger than the sum of its proper divisors (9461034487).

123012341513 is a wasteful number, since it uses less digits than its factorization.

123012341513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400304.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 123012341513 its reverse (315143210321), we get a palindrome (438155551834).

The spelling of 123012341513 in words is "one hundred twenty-three billion, twelve million, three hundred forty-one thousand, five hundred thirteen".