3213554121040 has 40 divisors (see below), whose sum is σ = 7471702001448. Its totient is φ = 1285389189120.

The previous prime is 3213554120977. The next prime is 3213554121049. The reversal of 3213554121040 is 401214553123.

It can be written as a sum of positive squares in 4 ways, for example, as 29884728384 + 3183669392656 = 172872^2 + 1784284^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 3213554120993 and 3213554121011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213554121049) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2815944 + ... + 3789016.

Almost surely, 2^{3213554121040} is an apocalyptic number.

It is an amenable number.

3213554121040 is an abundant number, since it is smaller than the sum of its proper divisors (4258147880408).

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

3213554121040 is a wasteful number, since it uses less digits than its factorization.

3213554121040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014367 (or 1014361 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 3213554121040 its reverse (401214553123), we get a palindrome (3614768674163).

The spelling of 3213554121040 in words is "three trillion, two hundred thirteen billion, five hundred fifty-four million, one hundred twenty-one thousand, forty".