423236121 has 32 divisors (see below), whose sum is σ = 727833600. Its totient is φ = 212278080.

The previous prime is 423236113. The next prime is 423236137. The reversal of 423236121 is 121632324.

It is not a de Polignac number, because 423236121 - 2³ = 423236113 is a prime.

It is a super-3 number, since 3×423236121³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423236091 and 423236100.

It is not an unprimeable number, because it can be changed into a prime (423236141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24891 + ... + 38288.

It is an arithmetic number, because the mean of its divisors is an integer number (22744800).

Almost surely, 2^423236121 is an apocalyptic number.

It is an amenable number.

423236121 is a deficient number, since it is larger than the sum of its proper divisors (304597479).

423236121 is a wasteful number, since it uses less digits than its factorization.

423236121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63229.

The product of its digits is 1728, while the sum is 24.

The square root of 423236121 is about 20572.7032983028. The cubic root of 423236121 is about 750.8057243233.

Adding to 423236121 its reverse (121632324), we get a palindrome (544868445).

The spelling of 423236121 in words is "four hundred twenty-three million, two hundred thirty-six thousand, one hundred twenty-one".