11350012520 has 128 divisors (see below), whose sum is σ = 33514905600. Its totient is φ = 3351456000.

The previous prime is 11350012517. The next prime is 11350012523. The reversal of 11350012520 is 2521005311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11350012517) and next prime (11350012523).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11350012492 and 11350012501.

It is not an unprimeable number, because it can be changed into a prime (11350012523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38456 + ... + 155495.

It is an arithmetic number, because the mean of its divisors is an integer number (261835200).

Almost surely, 2^11350012520 is an apocalyptic number.

11350012520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11350012520 is an abundant number, since it is smaller than the sum of its proper divisors (22164893080).

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

11350012520 is a wasteful number, since it uses less digits than its factorization.

11350012520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193999 (or 193995 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 11350012520 its reverse (2521005311), we get a palindrome (13871017831).

The spelling of 11350012520 in words is "eleven billion, three hundred fifty million, twelve thousand, five hundred twenty".