3521402253243 has 36 divisors (see below), whose sum is σ = 6228330530760. Its totient is φ = 1906323019776.

The previous prime is 3521402253217. The next prime is 3521402253367. The reversal of 3521402253243 is 3423522041253.

3521402253243 is a `hidden beast` number, since 3 + 5 + 2 + 1 + 402 + 2 + 5 + 3 + 243 = 666.

It is not a de Polignac number, because 3521402253243 - 2²⁰ = 3521401204667 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3521402253198 and 3521402253207.

It is not an unprimeable number, because it can be changed into a prime (3521402253443) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 210124230 + ... + 210140987.

It is an arithmetic number, because the mean of its divisors is an integer number (173009181410).

Almost surely, 2^{3521402253243} is an apocalyptic number.

3521402253243 is a deficient number, since it is larger than the sum of its proper divisors (2706928277517).

3521402253243 is a wasteful number, since it uses less digits than its factorization.

3521402253243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420265256 (or 420265246 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 3521402253243 its reverse (3423522041253), we get a palindrome (6944924294496).

The spelling of 3521402253243 in words is "three trillion, five hundred twenty-one billion, four hundred two million, two hundred fifty-three thousand, two hundred forty-three".