431345035021 has 16 divisors (see below), whose sum is σ = 441395697600. Its totient is φ = 421444192000.

The previous prime is 431345034983. The next prime is 431345035153. The reversal of 431345035021 is 120530543134.

It is a cyclic number.

It is not a de Polignac number, because 431345035021 - 2¹¹ = 431345032973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431345030021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2277285 + ... + 2459413.

It is an arithmetic number, because the mean of its divisors is an integer number (27587231100).

Almost surely, 2^431345035021 is an apocalyptic number.

It is an amenable number.

431345035021 is a deficient number, since it is larger than the sum of its proper divisors (10050662579).

431345035021 is a wasteful number, since it uses less digits than its factorization.

431345035021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182540.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 431345035021 its reverse (120530543134), we get a palindrome (551875578155).

The spelling of 431345035021 in words is "four hundred thirty-one billion, three hundred forty-five million, thirty-five thousand, twenty-one".