20101012111030 has 8 divisors (see below), whose sum is σ = 36181821799872. Its totient is φ = 8040404844408.

The previous prime is 20101012111013. The next prime is 20101012111051. The reversal of 20101012111030 is 3011121010102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20101012111030.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005050605542 + ... + 1005050605561.

It is an arithmetic number, because the mean of its divisors is an integer number (4522727724984).

Almost surely, 2^{20101012111030} is an apocalyptic number.

20101012111030 is a deficient number, since it is larger than the sum of its proper divisors (16080809688842).

20101012111030 is a wasteful number, since it uses less digits than its factorization.

20101012111030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010101211110.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 20101012111030 its reverse (3011121010102), we get a palindrome (23112133121132).

The spelling of 20101012111030 in words is "twenty trillion, one hundred one billion, twelve million, one hundred eleven thousand, thirty".