20011025024 has 16 divisors (see below), whose sum is σ = 39865714170. Its totient is φ = 10005512448.

The previous prime is 20011025011. The next prime is 20011025029. The reversal of 20011025024 is 42052011002.

It can be written as a sum of positive squares in only one way, i.e., 19890025024 + 121000000 = 141032^2 + 11000^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×20011025024² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20011024993 and 20011025011.

It is not an unprimeable number, because it can be changed into a prime (20011025029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78167939 + ... + 78168194.

Almost surely, 2^20011025024 is an apocalyptic number.

It is an amenable number.

20011025024 is a deficient number, since it is larger than the sum of its proper divisors (19854689146).

20011025024 is an equidigital number, since it uses as much as digits as its factorization.

20011025024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156336147 (or 156336135 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 20011025024 its reverse (42052011002), we get a palindrome (62063036026).

The spelling of 20011025024 in words is "twenty billion, eleven million, twenty-five thousand, twenty-four".