320120211432 has 32 divisors (see below), whose sum is σ = 914629176000. Its totient is φ = 91462917504.

The previous prime is 320120211421. The next prime is 320120211443. The reversal of 320120211432 is 234112021023.

It is an interprime number because it is at equal distance from previous prime (320120211421) and next prime (320120211443).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 320120211399 and 320120211408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 952738557 + ... + 952738892.

It is an arithmetic number, because the mean of its divisors is an integer number (28582161750).

Almost surely, 2^320120211432 is an apocalyptic number.

It is an amenable number.

320120211432 is an abundant number, since it is smaller than the sum of its proper divisors (594508964568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320120211432 is a wasteful number, since it uses less digits than its factorization.

320120211432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905477465 (or 1905477461 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 320120211432 its reverse (234112021023), we get a palindrome (554232232455).

The spelling of 320120211432 in words is "three hundred twenty billion, one hundred twenty million, two hundred eleven thousand, four hundred thirty-two".