20350211530 has 32 divisors (see below), whose sum is σ = 40252127040. Its totient is φ = 7346056320.

The previous prime is 20350211521. The next prime is 20350211537. The reversal of 20350211530 is 3511205302.

It is a super-2 number, since 2×20350211530² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (20350211537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660120 + ... + 690259.

It is an arithmetic number, because the mean of its divisors is an integer number (1257878970).

Almost surely, 2^20350211530 is an apocalyptic number.

20350211530 is a deficient number, since it is larger than the sum of its proper divisors (19901915510).

20350211530 is a wasteful number, since it uses less digits than its factorization.

20350211530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350534.

The product of its (nonzero) digits is 900, while the sum is 22.

Adding to 20350211530 its reverse (3511205302), we get a palindrome (23861416832).

The spelling of 20350211530 in words is "twenty billion, three hundred fifty million, two hundred eleven thousand, five hundred thirty".