431401111321 has 4 divisors (see below), whose sum is σ = 431630704000. Its totient is φ = 431171518644.

The previous prime is 431401111291. The next prime is 431401111327. The reversal of 431401111321 is 123111104134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 431401111321 - 2¹⁵ = 431401078553 is a prime.

It is a super-2 number, since 2×431401111321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431401111292 and 431401111301.

It is not an unprimeable number, because it can be changed into a prime (431401111327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114793521 + ... + 114797278.

It is an arithmetic number, because the mean of its divisors is an integer number (107907676000).

Almost surely, 2^431401111321 is an apocalyptic number.

It is an amenable number.

431401111321 is a deficient number, since it is larger than the sum of its proper divisors (229592679).

431401111321 is a wasteful number, since it uses less digits than its factorization.

431401111321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229592678.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 431401111321 its reverse (123111104134), we get a palindrome (554512215455).

The spelling of 431401111321 in words is "four hundred thirty-one billion, four hundred one million, one hundred eleven thousand, three hundred twenty-one".