20110013400 has 48 divisors (see below), whose sum is σ = 62341043400. Its totient is φ = 5362670080.

The previous prime is 20110013393. The next prime is 20110013401. The reversal of 20110013400 is 431001102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110013401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16757745 + ... + 16758944.

Almost surely, 2^20110013400 is an apocalyptic number.

20110013400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110013400 is an abundant number, since it is smaller than the sum of its proper divisors (42231030000).

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

20110013400 is a wasteful number, since it uses less digits than its factorization.

20110013400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33516708 (or 33516699 counting only the distinct ones).

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

Adding to 20110013400 its reverse (431001102), we get a palindrome (20541014502).

The spelling of 20110013400 in words is "twenty billion, one hundred ten million, thirteen thousand, four hundred".