20101000331020 has 48 divisors (see below), whose sum is σ = 48346596200448. Its totient is φ = 6876886484160.

The previous prime is 20101000330949. The next prime is 20101000331099. The reversal of 20101000331020 is 2013300010102.

It is a super-2 number, since 2×20101000331020² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154987636 + ... + 155117275.

It is an arithmetic number, because the mean of its divisors is an integer number (1007220754176).

Almost surely, 2^{20101000331020} is an apocalyptic number.

20101000331020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20101000331020 is an abundant number, since it is smaller than the sum of its proper divisors (28245595869428).

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

20101000331020 is a wasteful number, since it uses less digits than its factorization.

20101000331020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310105390 (or 310105388 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20101000331020 its reverse (2013300010102), we get a palindrome (22114300341122).

The spelling of 20101000331020 in words is "twenty trillion, one hundred one billion, three hundred thirty-one thousand, twenty".