20355211030 has 96 divisors (see below), whose sum is σ = 46658293920. Its totient is φ = 6322337280.

The previous prime is 20355211027. The next prime is 20355211049. The reversal of 20355211030 is 3011255302.

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

It is a junction number, because it is equal to n+sod(n) for n = 20355210992 and 20355211010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1572826 + ... + 1585714.

It is an arithmetic number, because the mean of its divisors is an integer number (486023895).

Almost surely, 2^20355211030 is an apocalyptic number.

20355211030 is an abundant number, since it is smaller than the sum of its proper divisors (26303082890).

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

20355211030 is a wasteful number, since it uses less digits than its factorization.

20355211030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13214 (or 13207 counting only the distinct ones).

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

Adding to 20355211030 its reverse (3011255302), we get a palindrome (23366466332).

The spelling of 20355211030 in words is "twenty billion, three hundred fifty-five million, two hundred eleven thousand, thirty".