311201121201 has 16 divisors (see below), whose sum is σ = 436798770240. Its totient is φ = 196536706560.

The previous prime is 311201121173. The next prime is 311201121251. The reversal of 311201121201 is 102121102113.

It is not a de Polignac number, because 311201121201 - 2⁹ = 311201120689 is a prime.

It is a super-2 number, since 2×311201121201² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311201121251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 897381 + ... + 1194861.

It is an arithmetic number, because the mean of its divisors is an integer number (27299923140).

Almost surely, 2^311201121201 is an apocalyptic number.

It is an amenable number.

311201121201 is a deficient number, since it is larger than the sum of its proper divisors (125597649039).

311201121201 is a wasteful number, since it uses less digits than its factorization.

311201121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315856.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 311201121201 its reverse (102121102113), we get a palindrome (413322223314).

The spelling of 311201121201 in words is "three hundred eleven billion, two hundred one million, one hundred twenty-one thousand, two hundred one".