123036161630321 has 4 divisors (see below), whose sum is σ = 123036192460272. Its totient is φ = 123036130800372.

The previous prime is 123036161630287. The next prime is 123036161630363.

123036161630321 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123036161630321 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123036161630821) 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, 8349191 + ... + 17770236.

It is an arithmetic number, because the mean of its divisors is an integer number (30759048115068).

Almost surely, 2^{123036161630321} is an apocalyptic number.

It is an amenable number.

123036161630321 is a deficient number, since it is larger than the sum of its proper divisors (30829951).

123036161630321 is an equidigital number, since it uses as much as digits as its factorization.

123036161630321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30829950.

The product of its (nonzero) digits is 69984, while the sum is 38.

The spelling of 123036161630321 in words is "one hundred twenty-three trillion, thirty-six billion, one hundred sixty-one million, six hundred thirty thousand, three hundred twenty-one".