20400313413 has 8 divisors (see below), whose sum is σ = 27203119488. Its totient is φ = 13598858144.

The previous prime is 20400313391. The next prime is 20400313501. The reversal of 20400313413 is 31431300402.

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 20400313413 - 2¹² = 20400309317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20400313413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20400313513) 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, 301920 + ... + 363257.

It is an arithmetic number, because the mean of its divisors is an integer number (3400389936).

Almost surely, 2^20400313413 is an apocalyptic number.

It is an amenable number.

20400313413 is a deficient number, since it is larger than the sum of its proper divisors (6802806075).

20400313413 is a wasteful number, since it uses less digits than its factorization.

20400313413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675403.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20400313413 its reverse (31431300402), we get a palindrome (51831613815).

The spelling of 20400313413 in words is "twenty billion, four hundred million, three hundred thirteen thousand, four hundred thirteen".