23120030355 has 16 divisors (see below), whose sum is σ = 37014685344. Its totient is φ = 12323137280.

The previous prime is 23120030347. The next prime is 23120030393. The reversal of 23120030355 is 55303002132.

It is a happy number.

It is not a de Polignac number, because 23120030355 - 2³ = 23120030347 is a prime.

It is a super-2 number, since 2×23120030355² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446226 + ... + 495335.

It is an arithmetic number, because the mean of its divisors is an integer number (2313417834).

Almost surely, 2^23120030355 is an apocalyptic number.

23120030355 is a deficient number, since it is larger than the sum of its proper divisors (13894654989).

23120030355 is a wasteful number, since it uses less digits than its factorization.

23120030355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943206.

The product of its (nonzero) digits is 2700, while the sum is 24.

Adding to 23120030355 its reverse (55303002132), we get a palindrome (78423032487).

The spelling of 23120030355 in words is "twenty-three billion, one hundred twenty million, thirty thousand, three hundred fifty-five".