210311121012 has 24 divisors (see below), whose sum is σ = 490736565312. Its totient is φ = 70102190400.

The previous prime is 210311120977. The next prime is 210311121037. The reversal of 210311121012 is 210121113012.

It is a junction number, because it is equal to n+sod(n) for n = 210311120982 and 210311121000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483937 + ... + 809207.

It is an arithmetic number, because the mean of its divisors is an integer number (20447356888).

Almost surely, 2^210311121012 is an apocalyptic number.

It is an amenable number.

210311121012 is an abundant number, since it is smaller than the sum of its proper divisors (280425444300).

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

210311121012 is a wasteful number, since it uses less digits than its factorization.

210311121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379159 (or 379157 counting only the distinct ones).

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

Adding to 210311121012 its reverse (210121113012), we get a palindrome (420432234024).

The spelling of 210311121012 in words is "two hundred ten billion, three hundred eleven million, one hundred twenty-one thousand, twelve".