20154324413 has 4 divisors (see below), whose sum is σ = 20177047200. Its totient is φ = 20131601628.

The previous prime is 20154324361. The next prime is 20154324419. The reversal of 20154324413 is 31442345102.

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 not a de Polignac number, because 20154324413 - 2⁶ = 20154324349 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 (20154324419) 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, 11360063 + ... + 11361836.

It is an arithmetic number, because the mean of its divisors is an integer number (5044261800).

Almost surely, 2^20154324413 is an apocalyptic number.

It is an amenable number.

20154324413 is a deficient number, since it is larger than the sum of its proper divisors (22722787).

20154324413 is an equidigital number, since it uses as much as digits as its factorization.

20154324413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22722786.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 20154324413 its reverse (31442345102), we get a palindrome (51596669515).

The spelling of 20154324413 in words is "twenty billion, one hundred fifty-four million, three hundred twenty-four thousand, four hundred thirteen".