423231451 has 4 divisors (see below), whose sum is σ = 425380032. Its totient is φ = 421082872.

The previous prime is 423231449. The next prime is 423231461. The reversal of 423231451 is 154132324.

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

It is a cyclic number.

It is not a de Polignac number, because 423231451 - 2¹ = 423231449 is a prime.

It is a super-2 number, since 2×423231451² = 358249722231130802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423231461) 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, 1073995 + ... + 1074388.

It is an arithmetic number, because the mean of its divisors is an integer number (106345008).

Almost surely, 2^423231451 is an apocalyptic number.

423231451 is a deficient number, since it is larger than the sum of its proper divisors (2148581).

423231451 is a wasteful number, since it uses less digits than its factorization.

423231451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148580.

The product of its digits is 2880, while the sum is 25.

The square root of 423231451 is about 20572.5897980784. The cubic root of 423231451 is about 750.8029628423.

Adding to 423231451 its reverse (154132324), we get a palindrome (577363775).

The spelling of 423231451 in words is "four hundred twenty-three million, two hundred thirty-one thousand, four hundred fifty-one".