203311130022 has 288 divisors, whose sum is σ = 610799304960. Its totient is φ = 47426446080.

The previous prime is 203311129937. The next prime is 203311130041. The reversal of 203311130022 is 220031113302.

203311130022 is a `hidden beast` number, since 2 + 0 + 331 + 11 + 300 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 203311129977 and 203311130004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 8654929 + ... + 8678387.

It is an arithmetic number, because the mean of its divisors is an integer number (2120830920).

Almost surely, 2^203311130022 is an apocalyptic number.

203311130022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 203311130022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305399652480).

203311130022 is an abundant number, since it is smaller than the sum of its proper divisors (407488174938).

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

203311130022 is a wasteful number, since it uses less digits than its factorization.

203311130022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23548 (or 23532 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 203311130022 its reverse (220031113302), we get a palindrome (423342243324).

It can be divided in two parts, 203311 and 130022, that added together give a palindrome (333333).

The spelling of 203311130022 in words is "two hundred three billion, three hundred eleven million, one hundred thirty thousand, twenty-two".