20401113 has 8 divisors (see below), whose sum is σ = 27223488. Its totient is φ = 13589744.

The previous prime is 20401111. The next prime is 20401127. The reversal of 20401113 is 31110402.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20401113 - 2¹ = 20401111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20401111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3820 + ... + 7442.

It is an arithmetic number, because the mean of its divisors is an integer number (3402936).

Almost surely, 2^20401113 is an apocalyptic number.

It is an amenable number.

20401113 is a deficient number, since it is larger than the sum of its proper divisors (6822375).

20401113 is a wasteful number, since it uses less digits than its factorization.

20401113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5503.

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

The square root of 20401113 is about 4516.7591257449. The cubic root of 20401113 is about 273.2444107266.

Adding to 20401113 its reverse (31110402), we get a palindrome (51511515).

The spelling of 20401113 in words is "twenty million, four hundred one thousand, one hundred thirteen".