20111020130 has 32 divisors (see below), whose sum is σ = 36895704768. Its totient is φ = 7889876800.

The previous prime is 20111020123. The next prime is 20111020133. The reversal of 20111020130 is 3102011102.

It is a super-3 number, since 3×20111020130³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20111020133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2227325 + ... + 2236335.

It is an arithmetic number, because the mean of its divisors is an integer number (1152990774).

Almost surely, 2^20111020130 is an apocalyptic number.

20111020130 is a deficient number, since it is larger than the sum of its proper divisors (16784684638).

20111020130 is a wasteful number, since it uses less digits than its factorization.

20111020130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13282.

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

Adding to 20111020130 its reverse (3102011102), we get a palindrome (23213031232).

The spelling of 20111020130 in words is "twenty billion, one hundred eleven million, twenty thousand, one hundred thirty".