20013111212132 has 12 divisors (see below), whose sum is σ = 35177230722480. Its totient is φ = 9962473862856.

The previous prime is 20013111212123. The next prime is 20013111212137. The reversal of 20013111212132 is 23121211131002.

It is not an unprimeable number, because it can be changed into a prime (20013111212137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11020434782 + ... + 11020436597.

It is an arithmetic number, because the mean of its divisors is an integer number (2931435893540).

Almost surely, 2^{20013111212132} is an apocalyptic number.

It is an amenable number.

20013111212132 is a deficient number, since it is larger than the sum of its proper divisors (15164119510348).

20013111212132 is a wasteful number, since it uses less digits than its factorization.

20013111212132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22040871610 (or 22040871608 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 20013111212132 its reverse (23121211131002), we get a palindrome (43134322343134).

The spelling of 20013111212132 in words is "twenty trillion, thirteen billion, one hundred eleven million, two hundred twelve thousand, one hundred thirty-two".