20303121311130 has 32 divisors (see below), whose sum is σ = 55688561311104. Its totient is φ = 4640713442496.

The previous prime is 20303121311117. The next prime is 20303121311131. The reversal of 20303121311130 is 3111312130302.

It is a happy number.

It is a super-2 number, since 2×20303121311130² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 20303121311097 and 20303121311106.

It is not an unprimeable number, because it can be changed into a prime (20303121311131) 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, 48340764817 + ... + 48340765236.

It is an arithmetic number, because the mean of its divisors is an integer number (1740267540972).

Almost surely, 2^{20303121311130} is an apocalyptic number.

20303121311130 is an abundant number, since it is smaller than the sum of its proper divisors (35385439999974).

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

20303121311130 is a wasteful number, since it uses less digits than its factorization.

20303121311130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96681530070.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 20303121311130 its reverse (3111312130302), we get a palindrome (23414433441432).

The spelling of 20303121311130 in words is "twenty trillion, three hundred three billion, one hundred twenty-one million, three hundred eleven thousand, one hundred thirty".