311201201012 has 48 divisors (see below), whose sum is σ = 596362712400. Its totient is φ = 141232481280.

The previous prime is 311201201009. The next prime is 311201201041. The reversal of 311201201012 is 210102102113.

It can be written as a sum of positive squares in 8 ways, for example, as 88468174096 + 222733026916 = 297436^2 + 471946^2 .

It is a super-2 number, since 2×311201201012² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651914 + ... + 1023422.

It is an arithmetic number, because the mean of its divisors is an integer number (12424223175).

Almost surely, 2^311201201012 is an apocalyptic number.

It is an amenable number.

311201201012 is a deficient number, since it is larger than the sum of its proper divisors (285161511388).

311201201012 is a wasteful number, since it uses less digits than its factorization.

311201201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371796 (or 371794 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 311201201012 its reverse (210102102113), we get a palindrome (521303303125).

The spelling of 311201201012 in words is "three hundred eleven billion, two hundred one million, two hundred one thousand, twelve".