3520121653423 has 8 divisors (see below), whose sum is σ = 3520825786368. Its totient is φ = 3519417612984.

The previous prime is 3520121653393. The next prime is 3520121653427. The reversal of 3520121653423 is 3243561210253.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3520121653423 - 2²¹ = 3520119556271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520121653427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195043986 + ... + 195062032.

It is an arithmetic number, because the mean of its divisors is an integer number (440103223296).

Almost surely, 2^{3520121653423} is an apocalyptic number.

3520121653423 is a deficient number, since it is larger than the sum of its proper divisors (704132945).

3520121653423 is a wasteful number, since it uses less digits than its factorization.

3520121653423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46253.

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 3520121653423 its reverse (3243561210253), we get a palindrome (6763682863676).

The spelling of 3520121653423 in words is "three trillion, five hundred twenty billion, one hundred twenty-one million, six hundred fifty-three thousand, four hundred twenty-three".