20412213413 has 4 divisors (see below), whose sum is σ = 20568031968. Its totient is φ = 20256394860.

The previous prime is 20412213403. The next prime is 20412213431. The reversal of 20412213413 is 31431221402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20412213413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20412213403) 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, 77909081 + ... + 77909342.

It is an arithmetic number, because the mean of its divisors is an integer number (5142007992).

Almost surely, 2^20412213413 is an apocalyptic number.

It is an amenable number.

20412213413 is a deficient number, since it is larger than the sum of its proper divisors (155818555).

20412213413 is a wasteful number, since it uses less digits than its factorization.

20412213413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155818554.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20412213413 its reverse (31431221402), we get a palindrome (51843434815).

The spelling of 20412213413 in words is "twenty billion, four hundred twelve million, two hundred thirteen thousand, four hundred thirteen".