20401420413 has 8 divisors (see below), whose sum is σ = 29674793376. Its totient is φ = 12364497200.

The previous prime is 20401420397. The next prime is 20401420513. The reversal of 20401420413 is 31402410402.

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

It is not a de Polignac number, because 20401420413 - 2⁴ = 20401420397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20401420413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20401420513) 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, 309112398 + ... + 309112463.

It is an arithmetic number, because the mean of its divisors is an integer number (3709349172).

Almost surely, 2^20401420413 is an apocalyptic number.

It is an amenable number.

20401420413 is a deficient number, since it is larger than the sum of its proper divisors (9273372963).

20401420413 is a wasteful number, since it uses less digits than its factorization.

20401420413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618224875.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20401420413 its reverse (31402410402), we get a palindrome (51803830815).

The spelling of 20401420413 in words is "twenty billion, four hundred one million, four hundred twenty thousand, four hundred thirteen".