233011021020 has 24 divisors (see below), whose sum is σ = 652430859024. Its totient is φ = 62136272256.

The previous prime is 233011021013. The next prime is 233011021021. The reversal of 233011021020 is 20120110332.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233011021021) 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, 1941758449 + ... + 1941758568.

It is an arithmetic number, because the mean of its divisors is an integer number (27184619126).

Almost surely, 2^233011021020 is an apocalyptic number.

233011021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233011021020 is an abundant number, since it is smaller than the sum of its proper divisors (419419838004).

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

233011021020 is a wasteful number, since it uses less digits than its factorization.

233011021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3883517029 (or 3883517027 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 233011021020 its reverse (20120110332), we get a palindrome (253131131352).

The spelling of 233011021020 in words is "two hundred thirty-three billion, eleven million, twenty-one thousand, twenty".