311421011022012 has 24 divisors (see below), whose sum is σ = 746288188576336. Its totient is φ = 101001408979968.

The previous prime is 311421011021969. The next prime is 311421011022019. The reversal of 311421011022012 is 210220110124113.

It is a super-2 number, since 2×311421011022012² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 311421011022012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311421011022019) 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, 350699336293 + ... + 350699337180.

Almost surely, 2^{311421011022012} is an apocalyptic number.

It is an amenable number.

311421011022012 is an abundant number, since it is smaller than the sum of its proper divisors (434867177554324).

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

311421011022012 is a wasteful number, since it uses less digits than its factorization.

311421011022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701398673517 (or 701398673515 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 311421011022012 its reverse (210220110124113), we get a palindrome (521641121146125).

The spelling of 311421011022012 in words is "three hundred eleven trillion, four hundred twenty-one billion, eleven million, twenty-two thousand, twelve".