1523553140213 has 16 divisors (see below), whose sum is σ = 1653864898560. Its totient is φ = 1395117634176.

The previous prime is 1523553140143. The next prime is 1523553140231. The reversal of 1523553140213 is 3120413553251.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1523553140213 - 2¹⁶ = 1523553074677 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 (1523553140293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15153956 + ... + 15254162.

It is an arithmetic number, because the mean of its divisors is an integer number (103366556160).

Almost surely, 2^{1523553140213} is an apocalyptic number.

1523553140213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1523553140213 is a deficient number, since it is larger than the sum of its proper divisors (130311758347).

1523553140213 is a wasteful number, since it uses less digits than its factorization.

1523553140213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109556.

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 1523553140213 its reverse (3120413553251), we get a palindrome (4643966693464).

The spelling of 1523553140213 in words is "one trillion, five hundred twenty-three billion, five hundred fifty-three million, one hundred forty thousand, two hundred thirteen".