431020403021 has 8 divisors (see below), whose sum is σ = 468682381440. Its totient is φ = 394002219312.

The previous prime is 431020403003. The next prime is 431020403083. The reversal of 431020403021 is 120304020134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 431020403021 - 2³⁰ = 429946661197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 431020402984 and 431020403002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431020483021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160947281 + ... + 160949958.

It is an arithmetic number, because the mean of its divisors is an integer number (58585297680).

Almost surely, 2^431020403021 is an apocalyptic number.

It is an amenable number.

431020403021 is a deficient number, since it is larger than the sum of its proper divisors (37661978419).

431020403021 is a wasteful number, since it uses less digits than its factorization.

431020403021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321897355.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 431020403021 its reverse (120304020134), we get a palindrome (551324423155).

The spelling of 431020403021 in words is "four hundred thirty-one billion, twenty million, four hundred three thousand, twenty-one".