32120311145 has 8 divisors (see below), whose sum is σ = 41509325256. Its totient is φ = 23719614336.

The previous prime is 32120311123. The next prime is 32120311189. The reversal of 32120311145 is 54111302123.

It can be written as a sum of positive squares in 4 ways, for example, as 4870225369 + 27250085776 = 69787^2 + 165076^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 32120311145 - 2⁸ = 32120310889 is a prime.

It is a super-2 number, since 2×32120311145² (a number of 22 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 32120311145.

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, 247079252 + ... + 247079381.

It is an arithmetic number, because the mean of its divisors is an integer number (5188665657).

Almost surely, 2^32120311145 is an apocalyptic number.

It is an amenable number.

32120311145 is a deficient number, since it is larger than the sum of its proper divisors (9389014111).

32120311145 is a wasteful number, since it uses less digits than its factorization.

32120311145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494158651.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 32120311145 its reverse (54111302123), we get a palindrome (86231613268).

The spelling of 32120311145 in words is "thirty-two billion, one hundred twenty million, three hundred eleven thousand, one hundred forty-five".