20113010145 has 12 divisors (see below), whose sum is σ = 34862550996. Its totient is φ = 10726938720.

The previous prime is 20113010119. The next prime is 20113010147. The reversal of 20113010145 is 54101031102.

It can be written as a sum of positive squares in 2 ways, for example, as 8006849361 + 12106160784 = 89481^2 + 110028^2 .

It is not a de Polignac number, because 20113010145 - 2¹² = 20113006049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20113010147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223477846 + ... + 223477935.

It is an arithmetic number, because the mean of its divisors is an integer number (2905212583).

Almost surely, 2^20113010145 is an apocalyptic number.

It is an amenable number.

20113010145 is a deficient number, since it is larger than the sum of its proper divisors (14749540851).

20113010145 is a wasteful number, since it uses less digits than its factorization.

20113010145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446955792 (or 446955789 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 20113010145 its reverse (54101031102), we get a palindrome (74214041247).

The spelling of 20113010145 in words is "twenty billion, one hundred thirteen million, ten thousand, one hundred forty-five".