20630311350 has 48 divisors (see below), whose sum is σ = 55814374080. Its totient is φ = 5001287200.

The previous prime is 20630311333. The next prime is 20630311379. The reversal of 20630311350 is 5311303602.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20630311350.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6249960 + ... + 6253259.

It is an arithmetic number, because the mean of its divisors is an integer number (1162799460).

Almost surely, 2^20630311350 is an apocalyptic number.

20630311350 is an abundant number, since it is smaller than the sum of its proper divisors (35184062730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20630311350 is a wasteful number, since it uses less digits than its factorization.

20630311350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12503245 (or 12503240 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

Adding to 20630311350 its reverse (5311303602), we get a palindrome (25941614952).

The spelling of 20630311350 in words is "twenty billion, six hundred thirty million, three hundred eleven thousand, three hundred fifty".