23120535 has 32 divisors (see below), whose sum is σ = 38016000. Its totient is φ = 11995776.

The previous prime is 23120501. The next prime is 23120551. The reversal of 23120535 is 53502132.

It is not a de Polignac number, because 23120535 - 2¹³ = 23112343 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129076 + ... + 129254.

It is an arithmetic number, because the mean of its divisors is an integer number (1188000).

Almost surely, 2^23120535 is an apocalyptic number.

23120535 is a deficient number, since it is larger than the sum of its proper divisors (14895465).

23120535 is a wasteful number, since it uses less digits than its factorization.

23120535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 23120535 is about 4808.3817444126. The cubic root of 23120535 is about 284.8826232565.

Adding to 23120535 its reverse (53502132), we get a palindrome (76622667).

The spelling of 23120535 in words is "twenty-three million, one hundred twenty thousand, five hundred thirty-five".