3211432505045 has 4 divisors (see below), whose sum is σ = 3853719006060. Its totient is φ = 2569146004032.

The previous prime is 3211432504963. The next prime is 3211432505143. The reversal of 3211432505045 is 5405052341123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1846101016369 + 1365331488676 = 1358713^2 + 1168474^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3211432505045 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3211432504996 and 3211432505014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321143250500 + ... + 321143250509.

It is an arithmetic number, because the mean of its divisors is an integer number (963429751515).

Almost surely, 2^{3211432505045} is an apocalyptic number.

It is an amenable number.

3211432505045 is a deficient number, since it is larger than the sum of its proper divisors (642286501015).

3211432505045 is an equidigital number, since it uses as much as digits as its factorization.

3211432505045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642286501014.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 3211432505045 its reverse (5405052341123), we get a palindrome (8616484846168).

The spelling of 3211432505045 in words is "three trillion, two hundred eleven billion, four hundred thirty-two million, five hundred five thousand, forty-five".