20201231121010 has 32 divisors (see below), whose sum is σ = 37180140307632. Its totient is φ = 7899816637440.

The previous prime is 20201231121007. The next prime is 20201231121059. The reversal of 20201231121010 is 1012113210202.

It can be written as a sum of positive squares in 8 ways, for example, as 15495945647121 + 4705285473889 = 3936489^2 + 2169167^2 .

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, 67672299 + ... + 67970158.

Almost surely, 2^{20201231121010} is an apocalyptic number.

20201231121010 is a deficient number, since it is larger than the sum of its proper divisors (16978909186622).

20201231121010 is a wasteful number, since it uses less digits than its factorization.

20201231121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135642798.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20201231121010 its reverse (1012113210202), we get a palindrome (21213344331212).

The spelling of 20201231121010 in words is "twenty trillion, two hundred one billion, two hundred thirty-one million, one hundred twenty-one thousand, ten".