20113401 has 16 divisors (see below), whose sum is σ = 33435648. Its totient is φ = 10448400.

The previous prime is 20113391. The next prime is 20113403. The reversal of 20113401 is 10431102.

It is a happy number.

It is not a de Polignac number, because 20113401 - 2⁶ = 20113337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20113403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43305 + ... + 43766.

It is an arithmetic number, because the mean of its divisors is an integer number (2089728).

Almost surely, 2^20113401 is an apocalyptic number.

20113401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20113401 is a deficient number, since it is larger than the sum of its proper divisors (13322247).

20113401 is a wasteful number, since it uses less digits than its factorization.

20113401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87092.

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

The square root of 20113401 is about 4484.7966509085. The cubic root of 20113401 is about 271.9538245217.

Adding to 20113401 its reverse (10431102), we get a palindrome (30544503).

The spelling of 20113401 in words is "twenty million, one hundred thirteen thousand, four hundred one".