20001131202 has 64 divisors (see below), whose sum is σ = 44327678976. Its totient is φ = 5978169600.

The previous prime is 20001131197. The next prime is 20001131219. The reversal of 20001131202 is 20213110002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 393583 + ... + 441485.

It is an arithmetic number, because the mean of its divisors is an integer number (692619984).

Almost surely, 2^20001131202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20001131202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22163839488).

20001131202 is an abundant number, since it is smaller than the sum of its proper divisors (24326547774).

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

20001131202 is a wasteful number, since it uses less digits than its factorization.

20001131202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48075.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20001131202 its reverse (20213110002), we get a palindrome (40214241204).

The spelling of 20001131202 in words is "twenty billion, one million, one hundred thirty-one thousand, two hundred two".