20011200045 has 16 divisors (see below), whose sum is σ = 33703074240. Its totient is φ = 10110921984.

The previous prime is 20011200031. The next prime is 20011200059. The reversal of 20011200045 is 54000211002.

It is an interprime number because it is at equal distance from previous prime (20011200031) and next prime (20011200059).

It is not a de Polignac number, because 20011200045 - 2⁶ = 20011199981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 20011199997 and 20011200033.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35107084 + ... + 35107653.

It is an arithmetic number, because the mean of its divisors is an integer number (2106442140).

Almost surely, 2^20011200045 is an apocalyptic number.

It is an amenable number.

20011200045 is a deficient number, since it is larger than the sum of its proper divisors (13691874195).

20011200045 is a wasteful number, since it uses less digits than its factorization.

20011200045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70214764.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 20011200045 its reverse (54000211002), we get a palindrome (74011411047).

The spelling of 20011200045 in words is "twenty billion, eleven million, two hundred thousand, forty-five".