233140000021 has 4 divisors (see below), whose sum is σ = 234624968332. Its totient is φ = 231655031712.

The previous prime is 233140000019. The next prime is 233140000091. The reversal of 233140000021 is 120000041332.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 126316268100 + 106823731921 = 355410^2 + 326839^2 .

It is a cyclic number.

It is not a de Polignac number, because 233140000021 - 2¹ = 233140000019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233140000091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742483920 + ... + 742484233.

It is an arithmetic number, because the mean of its divisors is an integer number (58656242083).

Almost surely, 2^233140000021 is an apocalyptic number.

It is an amenable number.

233140000021 is a deficient number, since it is larger than the sum of its proper divisors (1484968311).

233140000021 is a wasteful number, since it uses less digits than its factorization.

233140000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484968310.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 233140000021 its reverse (120000041332), we get a palindrome (353140041353).

The spelling of 233140000021 in words is "two hundred thirty-three billion, one hundred forty million, twenty-one", and thus it is an aban number.