113320121623 has 2 divisors, whose sum is σ = 113320121624. Its totient is φ = 113320121622.

The previous prime is 113320121573. The next prime is 113320121639. The reversal of 113320121623 is 326121023311.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (326121023311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113320121623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113320121723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56660060811 + 56660060812.

It is an arithmetic number, because the mean of its divisors is an integer number (56660060812).

Almost surely, 2^113320121623 is an apocalyptic number.

113320121623 is a deficient number, since it is larger than the sum of its proper divisors (1).

113320121623 is an equidigital number, since it uses as much as digits as its factorization.

113320121623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 113320121623 its reverse (326121023311), we get a palindrome (439441144934).

The spelling of 113320121623 in words is "one hundred thirteen billion, three hundred twenty million, one hundred twenty-one thousand, six hundred twenty-three".