20302121031010 has 64 divisors (see below), whose sum is σ = 45004485157632. Its totient is φ = 6421361147136.

The previous prime is 20302121030999. The next prime is 20302121031019. The reversal of 20302121031010 is 1013012120302.

It is a super-2 number, since 2×20302121031010² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20302121031019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5324632 + ... + 8303971.

It is an arithmetic number, because the mean of its divisors is an integer number (703195080588).

Almost surely, 2^{20302121031010} is an apocalyptic number.

20302121031010 is an abundant number, since it is smaller than the sum of its proper divisors (24702364126622).

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

20302121031010 is a wasteful number, since it uses less digits than its factorization.

20302121031010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13630267.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20302121031010 its reverse (1013012120302), we get a palindrome (21315133151312).

The spelling of 20302121031010 in words is "twenty trillion, three hundred two billion, one hundred twenty-one million, thirty-one thousand, ten".