23120155452 has 24 divisors (see below), whose sum is σ = 54004385232. Its totient is φ = 7698524800.

The previous prime is 23120155451. The next prime is 23120155493. The reversal of 23120155452 is 25455102132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23120155451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1012449 + ... + 1035032.

It is an arithmetic number, because the mean of its divisors is an integer number (2250182718).

Almost surely, 2^23120155452 is an apocalyptic number.

It is an amenable number.

23120155452 is an abundant number, since it is smaller than the sum of its proper divisors (30884229780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23120155452 is a wasteful number, since it uses less digits than its factorization.

23120155452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048429 (or 2048427 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 23120155452 its reverse (25455102132), we get a palindrome (48575257584).

The spelling of 23120155452 in words is "twenty-three billion, one hundred twenty million, one hundred fifty-five thousand, four hundred fifty-two".