1211402030344 has 64 divisors (see below), whose sum is σ = 2538869417280. Its totient is φ = 537087360000.

The previous prime is 1211402030327. The next prime is 1211402030359. The reversal of 1211402030344 is 4430302041121.

It is a super-3 number, since 3×1211402030344³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17258119 + ... + 17328169.

It is an arithmetic number, because the mean of its divisors is an integer number (39669834645).

Almost surely, 2^{1211402030344} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1211402030344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269434708640).

1211402030344 is an abundant number, since it is smaller than the sum of its proper divisors (1327467386936).

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

1211402030344 is a wasteful number, since it uses less digits than its factorization.

1211402030344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74902 (or 74898 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1211402030344 its reverse (4430302041121), we get a palindrome (5641704071465).

The spelling of 1211402030344 in words is "one trillion, two hundred eleven billion, four hundred two million, thirty thousand, three hundred forty-four".