311021321021132 has 12 divisors (see below), whose sum is σ = 544287889252800. Its totient is φ = 155510495520336.

The previous prime is 311021321021069. The next prime is 311021321021153. The reversal of 311021321021132 is 231120123120113.

It is a happy number.

It is a super-2 number, since 2×311021321021132² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311021321021098 and 311021321021107.

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, 36956507 + ... + 44585042.

It is an arithmetic number, because the mean of its divisors is an integer number (45357324104400).

Almost surely, 2^{311021321021132} is an apocalyptic number.

It is an amenable number.

311021321021132 is a deficient number, since it is larger than the sum of its proper divisors (233266568231668).

311021321021132 is a wasteful number, since it uses less digits than its factorization.

311021321021132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82495120 (or 82495118 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 311021321021132 its reverse (231120123120113), we get a palindrome (542141444141245).

The spelling of 311021321021132 in words is "three hundred eleven trillion, twenty-one billion, three hundred twenty-one million, twenty-one thousand, one hundred thirty-two".