11031020525 has 48 divisors (see below), whose sum is σ = 15829427328. Its totient is φ = 7469280000.

The previous prime is 11031020519. The next prime is 11031020531. The reversal of 11031020525 is 52502013011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11031020519) and next prime (11031020531).

It is not a de Polignac number, because 11031020525 - 2¹² = 11031016429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11031020497 and 11031020506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10091879 + ... + 10092971.

It is an arithmetic number, because the mean of its divisors is an integer number (329779736).

Almost surely, 2^11031020525 is an apocalyptic number.

It is an amenable number.

11031020525 is a deficient number, since it is larger than the sum of its proper divisors (4798406803).

11031020525 is a wasteful number, since it uses less digits than its factorization.

11031020525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782 (or 1777 counting only the distinct ones).

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

Adding to 11031020525 its reverse (52502013011), we get a palindrome (63533033536).

The spelling of 11031020525 in words is "eleven billion, thirty-one million, twenty thousand, five hundred twenty-five".