311132132220002 has 4 divisors (see below), whose sum is σ = 466698198330006. Its totient is φ = 155566066110000.

The previous prime is 311132132219999. The next prime is 311132132220037. The reversal of 311132132220002 is 200022231231113.

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

It can be written as a sum of positive squares in only one way, i.e., 164911339251961 + 146220792968041 = 12841781^2 + 12092179^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 311132132220002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77783033054999 + ... + 77783033055002.

Almost surely, 2^{311132132220002} is an apocalyptic number.

311132132220002 is a deficient number, since it is larger than the sum of its proper divisors (155566066110004).

311132132220002 is a wasteful number, since it uses less digits than its factorization.

311132132220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155566066110003.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 311132132220002 its reverse (200022231231113), we get a palindrome (511154363451115).

The spelling of 311132132220002 in words is "three hundred eleven trillion, one hundred thirty-two billion, one hundred thirty-two million, two hundred twenty thousand, two".