20401011413 has 4 divisors (see below), whose sum is σ = 20406388140. Its totient is φ = 20395634688.

The previous prime is 20401011391. The next prime is 20401011427. The reversal of 20401011413 is 31411010402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2887665169 + 17513346244 = 53737^2 + 132338^2 .

It is a cyclic number.

It is not a de Polignac number, because 20401011413 - 2⁸ = 20401011157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20401011391 and 20401011400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20401011613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2682668 + ... + 2690261.

It is an arithmetic number, because the mean of its divisors is an integer number (5101597035).

Almost surely, 2^20401011413 is an apocalyptic number.

It is an amenable number.

20401011413 is a deficient number, since it is larger than the sum of its proper divisors (5376727).

20401011413 is an equidigital number, since it uses as much as digits as its factorization.

20401011413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5376726.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20401011413 its reverse (31411010402), we get a palindrome (51812021815).

The spelling of 20401011413 in words is "twenty billion, four hundred one million, eleven thousand, four hundred thirteen".