20101133312 has 88 divisors (see below), whose sum is σ = 44766661800. Its totient is φ = 8957362176.

The previous prime is 20101133309. The next prime is 20101133321. The reversal of 20101133312 is 21333110102.

It can be written as a sum of positive squares in 4 ways, for example, as 3569345536 + 16531787776 = 59744^2 + 128576^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360014 + ... + 412082.

Almost surely, 2^20101133312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20101133312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22383330900).

20101133312 is an abundant number, since it is smaller than the sum of its proper divisors (24665528488).

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

20101133312 is a wasteful number, since it uses less digits than its factorization.

20101133312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52131 (or 52113 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20101133312 its reverse (21333110102), we get a palindrome (41434243414).

The spelling of 20101133312 in words is "twenty billion, one hundred one million, one hundred thirty-three thousand, three hundred twelve".