431445241532021 has 8 divisors (see below), whose sum is σ = 463815713182080. Its totient is φ = 400041052617888.

The previous prime is 431445241531963. The next prime is 431445241532087. The reversal of 431445241532021 is 120235142544134.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431445241532021 is a prime.

It is a super-2 number, since 2×431445241532021² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 431445241532021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431445241532321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241570683056 + ... + 241570684841.

It is an arithmetic number, because the mean of its divisors is an integer number (57976964147760).

Almost surely, 2^{431445241532021} is an apocalyptic number.

It is an amenable number.

431445241532021 is a deficient number, since it is larger than the sum of its proper divisors (32370471650059).

431445241532021 is a wasteful number, since it uses less digits than its factorization.

431445241532021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483141367963.

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 431445241532021 in words is "four hundred thirty-one trillion, four hundred forty-five billion, two hundred forty-one million, five hundred thirty-two thousand, twenty-one".