13611253020 has 48 divisors (see below), whose sum is σ = 38117133600. Its totient is φ = 3629131776.

The previous prime is 13611252989. The next prime is 13611253027. The reversal of 13611253020 is 2035211631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13611253027) 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, 553956 + ... + 578004.

It is an arithmetic number, because the mean of its divisors is an integer number (794106950).

Almost surely, 2^13611253020 is an apocalyptic number.

13611253020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13611253020 is an abundant number, since it is smaller than the sum of its proper divisors (24505880580).

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

13611253020 is a wasteful number, since it uses less digits than its factorization.

13611253020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33494 (or 33492 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 13611253020 its reverse (2035211631), we get a palindrome (15646464651).

The spelling of 13611253020 in words is "thirteen billion, six hundred eleven million, two hundred fifty-three thousand, twenty".