10520202240 has 220 divisors, whose sum is σ = 37699942896. Its totient is φ = 2805276672.

The previous prime is 10520202179. The next prime is 10520202289. The reversal of 10520202240 is 4220202501.

It is a super-3 number, since 3×10520202240³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 402037 + ... + 427403.

Almost surely, 2^10520202240 is an apocalyptic number.

10520202240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10520202240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18849971448).

10520202240 is an abundant number, since it is smaller than the sum of its proper divisors (27179740656).

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

10520202240 is an equidigital number, since it uses as much as digits as its factorization.

10520202240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25404 (or 25377 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

Adding to 10520202240 its reverse (4220202501), we get a palindrome (14740404741).

The spelling of 10520202240 in words is "ten billion, five hundred twenty million, two hundred two thousand, two hundred forty".