23012251452 has 72 divisors (see below), whose sum is σ = 60179030912. Its totient is φ = 7406899200.

The previous prime is 23012251393. The next prime is 23012251453. The reversal of 23012251452 is 25415221032.

23012251452 is a `hidden beast` number, since 23 + 0 + 122 + 514 + 5 + 2 = 666.

It is a super-2 number, since 2×23012251452² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012251453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 487452 + ... + 532572.

Almost surely, 2^23012251452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23012251452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30089515456).

23012251452 is an abundant number, since it is smaller than the sum of its proper divisors (37166779460).

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

23012251452 is a wasteful number, since it uses less digits than its factorization.

23012251452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45619 (or 45614 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 23012251452 its reverse (25415221032), we get a palindrome (48427472484).

The spelling of 23012251452 in words is "twenty-three billion, twelve million, two hundred fifty-one thousand, four hundred fifty-two".