431243001 has 64 divisors (see below), whose sum is σ = 763699200. Its totient is φ = 235363968.

The previous prime is 431242991. The next prime is 431243009. The reversal of 431243001 is 100342134.

It is not a de Polignac number, because 431243001 - 2⁶ = 431242937 is a prime.

It is a super-2 number, since 2×431243001² = 371941051822972002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (431243009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 381405 + ... + 382533.

It is an arithmetic number, because the mean of its divisors is an integer number (11932800).

Almost surely, 2^431243001 is an apocalyptic number.

It is an amenable number.

431243001 is a deficient number, since it is larger than the sum of its proper divisors (332456199).

431243001 is a wasteful number, since it uses less digits than its factorization.

431243001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 1229 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 431243001 is about 20766.3911404943. The cubic root of 431243001 is about 755.5108166904.

Adding to 431243001 its reverse (100342134), we get a palindrome (531585135).

The spelling of 431243001 in words is "four hundred thirty-one million, two hundred forty-three thousand, one".