233424201021 has 16 divisors (see below), whose sum is σ = 340120754688. Its totient is φ = 141221444400.

The previous prime is 233424201011. The next prime is 233424201029. The reversal of 233424201021 is 120102424332.

It is a happy number.

It is not a de Polignac number, because 233424201021 - 2²² = 233420006717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 233424200982 and 233424201000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233424201029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6175081 + ... + 6212766.

It is an arithmetic number, because the mean of its divisors is an integer number (21257547168).

Almost surely, 2^233424201021 is an apocalyptic number.

It is an amenable number.

233424201021 is a deficient number, since it is larger than the sum of its proper divisors (106696553667).

233424201021 is a wasteful number, since it uses less digits than its factorization.

233424201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12388432.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 233424201021 its reverse (120102424332), we get a palindrome (353526625353).

Subtracting from 233424201021 its reverse (120102424332), we obtain a square (113321776689 = 336633²).

The spelling of 233424201021 in words is "two hundred thirty-three billion, four hundred twenty-four million, two hundred one thousand, twenty-one".