10520423155144 has 128 divisors (see below), whose sum is σ = 23168860323840. Its totient is φ = 4384691200512.

The previous prime is 10520423155133. The next prime is 10520423155159. The reversal of 10520423155144 is 44155132402501.

It is a super-2 number, since 2×10520423155144² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 541359252 + ... + 541378684.

It is an arithmetic number, because the mean of its divisors is an integer number (181006721280).

Almost surely, 2^{10520423155144} is an apocalyptic number.

10520423155144 is a gapful number since it is divisible by the number (14) 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 10520423155144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11584430161920).

10520423155144 is an abundant number, since it is smaller than the sum of its proper divisors (12648437168696).

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

10520423155144 is a wasteful number, since it uses less digits than its factorization.

10520423155144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20459 (or 20455 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 10520423155144 its reverse (44155132402501), we get a palindrome (54675555557645).

The spelling of 10520423155144 in words is "ten trillion, five hundred twenty billion, four hundred twenty-three million, one hundred fifty-five thousand, one hundred forty-four".