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BaseRepresentation
bin10101100010000100…
…010011100110101101
32012200021121102102122
4111202010103212231
5334322223220100
614342104402325
71445636612120
oct254204234655
965607542378
1023120132525
119894791846
124592a763a5
132245c314b9
1411948403b7
15904b3e985

23120132525 has 24 divisors (see below), whose sum is σ = 32771545344. Its totient is φ = 15850411200.

The previous prime is 23120132489. The next prime is 23120132551. The reversal of 23120132525 is 52523102132.

It is a happy number.

It is not a de Polignac number, because 23120132525 - 26 = 23120132461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23120132494 and 23120132503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1021835 + ... + 1044215.

It is an arithmetic number, because the mean of its divisors is an integer number (1365481056).

Almost surely, 223120132525 is an apocalyptic number.

23120132525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23120132525 is a deficient number, since it is larger than the sum of its proper divisors (9651412819).

23120132525 is a wasteful number, since it uses less digits than its factorization.

23120132525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28301 (or 28296 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 23120132525 its reverse (52523102132), we get a palindrome (75643234657).

The spelling of 23120132525 in words is "twenty-three billion, one hundred twenty million, one hundred thirty-two thousand, five hundred twenty-five".