23133020 has 24 divisors (see below), whose sum is σ = 49765968. Its totient is φ = 9027200.

The previous prime is 23132999. The next prime is 23133031. The reversal of 23133020 is 2033132.

It is a super-2 number, since 2×23133020² = 1070273228640800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23132986 and 23133004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13286 + ... + 14925.

It is an arithmetic number, because the mean of its divisors is an integer number (2073582).

Almost surely, 2^23133020 is an apocalyptic number.

23133020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23133020 is an abundant number, since it is smaller than the sum of its proper divisors (26632948).

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

23133020 is a wasteful number, since it uses less digits than its factorization.

23133020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28261 (or 28259 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 23133020 is about 4809.6798230236. The cubic root of 23133020 is about 284.9338925362.

Adding to 23133020 its reverse (2033132), we get a palindrome (25166152).

The spelling of 23133020 in words is "twenty-three million, one hundred thirty-three thousand, twenty".