20213311445 has 8 divisors (see below), whose sum is σ = 24288276480. Its totient is φ = 16149114000.

The previous prime is 20213311399. The next prime is 20213311463. The reversal of 20213311445 is 54411331202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20213311445 - 2²⁶ = 20146202581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2687765 + ... + 2695274.

It is an arithmetic number, because the mean of its divisors is an integer number (3036034560).

Almost surely, 2^20213311445 is an apocalyptic number.

It is an amenable number.

20213311445 is a deficient number, since it is larger than the sum of its proper divisors (4074965035).

20213311445 is an equidigital number, since it uses as much as digits as its factorization.

20213311445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5383795.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 20213311445 its reverse (54411331202), we get a palindrome (74624642647).

The spelling of 20213311445 in words is "twenty billion, two hundred thirteen million, three hundred eleven thousand, four hundred forty-five".