20011030121000 has 64 divisors (see below), whose sum is σ = 47003856007680. Its totient is φ = 7973976916800.

The previous prime is 20011030120997. The next prime is 20011030121039. The reversal of 20011030121000 is 12103011002.

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, 37780784 + ... + 38306783.

It is an arithmetic number, because the mean of its divisors is an integer number (734435250120).

Almost surely, 2^{20011030121000} is an apocalyptic number.

20011030121000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20011030121000 is an abundant number, since it is smaller than the sum of its proper divisors (26992825886680).

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

20011030121000 is a wasteful number, since it uses less digits than its factorization.

20011030121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76087851 (or 76087837 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20011030121000 its reverse (12103011002), we get a palindrome (20023133132002).

The spelling of 20011030121000 in words is "twenty trillion, eleven billion, thirty million, one hundred twenty-one thousand".